{"title":"Audi RS5 S5 A5","description":"","products":[{"product_id":"catted-stainless-exhaust-downpipe-c-for-audi-s4-s5-b9-3-0t","title":"Free Flow Stainless Exhaust Downpipe for Audi S4 S5 B9 3.0T","description":"\u003cp data-start=\"259\" data-end=\"542\"\u003eUnlock improved performance and responsiveness from your \u003cstrong data-start=\"316\" data-end=\"336\"\u003eAudi S4 or S5 B9\u003c\/strong\u003e with the \u003cstrong data-start=\"346\" data-end=\"403\"\u003eSTRATEC Performance Exhaust Downpipe with Heat Shield\u003c\/strong\u003e. Designed to improve exhaust flow and reduce backpressure, this upgrade enhances turbo response, power delivery, and overall driving feel.\u003c\/p\u003e\n\u003cp data-start=\"544\" data-end=\"858\"\u003eConstructed from \u003cstrong data-start=\"561\" data-end=\"587\"\u003ehigh-quality materials\u003c\/strong\u003e and featuring an \u003cstrong data-start=\"605\" data-end=\"631\"\u003eintegrated heat shield\u003c\/strong\u003e, this downpipe helps manage engine bay temperatures while protecting surrounding components from excessive heat. The result is improved reliability, efficiency, and performance under both daily driving and spirited conditions.\u003c\/p\u003e\n\u003ch3 data-start=\"860\" data-end=\"876\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"877\" data-end=\"1233\"\u003e\n\u003cli data-start=\"877\" data-end=\"905\"\u003e\n\u003cp data-start=\"879\" data-end=\"905\"\u003eFits \u003cstrong data-start=\"884\" data-end=\"903\"\u003eAudi S4 \/ S5 B9\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"906\" data-end=\"945\"\u003e\n\u003cp data-start=\"908\" data-end=\"945\"\u003ePerformance exhaust downpipe design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"946\" data-end=\"996\"\u003e\n\u003cp data-start=\"948\" data-end=\"996\"\u003eImproves exhaust flow and reduces backpressure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"997\" data-end=\"1043\"\u003e\n\u003cp data-start=\"999\" data-end=\"1043\"\u003eEnhances turbo spool and throttle response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1044\" data-end=\"1083\"\u003e\n\u003cp data-start=\"1046\" data-end=\"1083\"\u003eIncreases \u003cstrong data-start=\"1056\" data-end=\"1081\"\u003ehorsepower and torque\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1084\" data-end=\"1137\"\u003e\n\u003cp data-start=\"1086\" data-end=\"1137\"\u003e\u003cstrong data-start=\"1086\" data-end=\"1112\"\u003eIntegrated heat shield\u003c\/strong\u003e for thermal protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1138\" data-end=\"1189\"\u003e\n\u003cp data-start=\"1140\" data-end=\"1189\"\u003eDurable construction for high-heat applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1190\" data-end=\"1233\"\u003e\n\u003cp data-start=\"1192\" data-end=\"1233\"\u003ePrecision-engineered for proper fitment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1235\" data-end=\"1247\"\u003eBenefits\u003c\/h3\u003e\n\u003cul data-start=\"1248\" data-end=\"1401\"\u003e\n\u003cli data-start=\"1248\" data-end=\"1302\"\u003e\n\u003cp data-start=\"1250\" data-end=\"1302\"\u003eFaster acceleration and improved engine efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1303\" data-end=\"1343\"\u003e\n\u003cp data-start=\"1305\" data-end=\"1343\"\u003eMore aggressive, deeper exhaust tone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1344\" data-end=\"1401\"\u003e\n\u003cp data-start=\"1346\" data-end=\"1401\"\u003eImproved performance, especially in higher RPM ranges\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1403\" data-end=\"1412\"\u003eNotes\u003c\/h3\u003e\n\u003cul data-start=\"1413\" data-end=\"1559\"\u003e\n\u003cli data-start=\"1413\" data-end=\"1454\"\u003e\n\u003cp data-start=\"1415\" data-end=\"1454\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1455\" data-end=\"1509\"\u003e\n\u003cp data-start=\"1457\" data-end=\"1509\"\u003eECU tuning may be required for optimal performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1510\" data-end=\"1559\"\u003e\n\u003cp data-start=\"1512\" data-end=\"1559\"\u003eIntended for performance-focused applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":47524841357532,"sku":"720595378635","price":749.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/files\/S4DOWNPIPEEE_2258a9c5-29ea-4421-8dba-02ddba644702.jpg?v=1769994469"},{"product_id":"titanium-valved-catback-exhaust-system-for-audi-b8-b8-5-s4-s5","title":"Titanium Valved Catback Exhaust System for Audi B8 B8.5 S4 S5","description":"\u003cp data-start=\"308\" data-end=\"697\"\u003eUnleash the full character of your \u003cstrong data-start=\"343\" data-end=\"368\"\u003eAudi B8\/B8.5 S4 or S5\u003c\/strong\u003e with the \u003cstrong data-start=\"378\" data-end=\"432\"\u003eSTRATEC Ultra-Light Titanium Valved Exhaust System\u003c\/strong\u003e, engineered for enthusiasts who want \u003cstrong data-start=\"470\" data-end=\"546\"\u003emaximum weight reduction, sharper response, and adjustable sound control\u003c\/strong\u003e. Built entirely from titanium, this system delivers a crisp, high-energy exhaust tone when valves are open and refined, OEM-like behavior when closed.\u003c\/p\u003e\n\u003cp data-start=\"699\" data-end=\"920\"\u003eDesigned as a \u003cstrong data-start=\"713\" data-end=\"750\"\u003ecomplete one-piece exhaust system\u003c\/strong\u003e, it eliminates the need to mix axle-backs, resonators, or mid-pipes from different suppliers—ensuring consistent sound quality, proper fitment, and seamless performance.\u003c\/p\u003e\n\u003cp data-start=\"922\" data-end=\"1187\"\u003eWith valves open, expect an aggressive, motorsport-inspired tone with strong midrange presence and exciting overrun character. With valves closed, the exhaust remains quiet and comfortable for daily driving, with minimal drone when paired with the factory downpipe.\u003c\/p\u003e\n\u003chr data-start=\"1189\" data-end=\"1192\"\u003e\n\u003ch3 data-start=\"1194\" data-end=\"1210\"\u003eWhy It Works\u003c\/h3\u003e\n\u003cul data-start=\"1211\" data-end=\"1573\"\u003e\n\u003cli data-start=\"1211\" data-end=\"1315\"\u003e\n\u003cp data-start=\"1213\" data-end=\"1315\"\u003e\u003cstrong data-start=\"1213\" data-end=\"1251\"\u003eUltra-Light Titanium Construction:\u003c\/strong\u003e Significant weight savings over stainless and factory systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1316\" data-end=\"1403\"\u003e\n\u003cp data-start=\"1318\" data-end=\"1403\"\u003e\u003cstrong data-start=\"1318\" data-end=\"1347\"\u003eElectronic Valve Control:\u003c\/strong\u003e Instantly switch between aggressive and refined sound\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1404\" data-end=\"1490\"\u003e\n\u003cp data-start=\"1406\" data-end=\"1490\"\u003e\u003cstrong data-start=\"1406\" data-end=\"1434\"\u003eOne-Piece System Design:\u003c\/strong\u003e No component mixing for perfect fit and sound balance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1491\" data-end=\"1573\"\u003e\n\u003cp data-start=\"1493\" data-end=\"1573\"\u003e\u003cstrong data-start=\"1493\" data-end=\"1526\"\u003eMandrel-Bent Titanium Tubing:\u003c\/strong\u003e Maximizes exhaust flow and throttle response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1575\" data-end=\"1578\"\u003e\n\u003ch3 data-start=\"1580\" data-end=\"1599\"\u003eSound \u0026amp; Control\u003c\/h3\u003e\n\u003cul data-start=\"1600\" data-end=\"1789\"\u003e\n\u003cli data-start=\"1600\" data-end=\"1670\"\u003e\n\u003cp data-start=\"1602\" data-end=\"1670\"\u003e\u003cstrong data-start=\"1602\" data-end=\"1618\"\u003eValves Open:\u003c\/strong\u003e Loud, sharp, and performance-focused exhaust tone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1671\" data-end=\"1728\"\u003e\n\u003cp data-start=\"1673\" data-end=\"1728\"\u003e\u003cstrong data-start=\"1673\" data-end=\"1691\"\u003eValves Closed:\u003c\/strong\u003e Quiet, refined, and daily-drivable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1729\" data-end=\"1789\"\u003e\n\u003cp data-start=\"1731\" data-end=\"1789\"\u003e\u003cstrong data-start=\"1731\" data-end=\"1760\"\u003eDriver-Controlled Valves:\u003c\/strong\u003e On-demand sound adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1791\" data-end=\"1794\"\u003e\n\u003ch3 data-start=\"1796\" data-end=\"1822\"\u003eConstruction \u0026amp; Details\u003c\/h3\u003e\n\u003cul data-start=\"1823\" data-end=\"2121\"\u003e\n\u003cli data-start=\"1823\" data-end=\"1900\"\u003e\n\u003cp data-start=\"1825\" data-end=\"1900\"\u003e\u003cstrong data-start=\"1825\" data-end=\"1838\"\u003eMaterial:\u003c\/strong\u003e Full \u003cstrong data-start=\"1844\" data-end=\"1869\"\u003etitanium construction\u003c\/strong\u003e for extreme weight reduction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1901\" data-end=\"1977\"\u003e\n\u003cp data-start=\"1903\" data-end=\"1977\"\u003e\u003cstrong data-start=\"1903\" data-end=\"1922\"\u003eWeight Savings:\u003c\/strong\u003e Significantly lighter than OEM and stainless systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1978\" data-end=\"2047\"\u003e\n\u003cp data-start=\"1980\" data-end=\"2047\"\u003e\u003cstrong data-start=\"1980\" data-end=\"1998\"\u003eCraftsmanship:\u003c\/strong\u003e Precision TIG welding and smooth mandrel bends\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2048\" data-end=\"2121\"\u003e\n\u003cp data-start=\"2050\" data-end=\"2121\"\u003e\u003cstrong data-start=\"2050\" data-end=\"2067\"\u003eExhaust Tips:\u003c\/strong\u003e Premium titanium tips for a clean motorsport finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2123\" data-end=\"2126\"\u003e\n\u003ch3 data-start=\"2128\" data-end=\"2147\"\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cul data-start=\"2148\" data-end=\"2223\"\u003e\n\u003cli data-start=\"2148\" data-end=\"2185\"\u003e\n\u003cp data-start=\"2150\" data-end=\"2185\"\u003e\u003cstrong data-start=\"2150\" data-end=\"2183\"\u003e2010–2016 Audi S4 (B8 \/ B8.5)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2186\" data-end=\"2223\"\u003e\n\u003cp data-start=\"2188\" data-end=\"2223\"\u003e\u003cstrong data-start=\"2188\" data-end=\"2221\"\u003e2010–2016 Audi S5 (B8 \/ B8.5)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":47524867834076,"sku":"721814382419","price":2499.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/files\/TITS4S5.jpg?v=1769990407"},{"product_id":"titanium-valved-catback-exhaust-system-for-audi-b9-s4-s5","title":"Titanium Valved Catback Exhaust System for Audi B9 S4 S5","description":"\u003cp data-start=\"305\" data-end=\"704\"\u003eTake your \u003cstrong data-start=\"315\" data-end=\"335\"\u003eAudi B9 S4 or S5\u003c\/strong\u003e to the next level with the \u003cstrong data-start=\"363\" data-end=\"417\"\u003eSTRATEC Ultra-Light Titanium Valved Exhaust System\u003c\/strong\u003e, engineered for maximum weight reduction, performance, and sound control. Built for enthusiasts who demand the lightest possible setup without compromising durability, this system delivers a sharp, aggressive exhaust note when valves are open and refined, OEM-like behavior when closed.\u003c\/p\u003e\n\u003cp data-start=\"706\" data-end=\"954\"\u003eDesigned as a \u003cstrong data-start=\"720\" data-end=\"749\"\u003ecomplete one-piece system\u003c\/strong\u003e from the downpipe connection to the exhaust tips, this exhaust eliminates the need to mix components from different suppliers, ensuring consistent sound quality, perfect fitment, and seamless performance.\u003c\/p\u003e\n\u003cp data-start=\"956\" data-end=\"1180\"\u003eWith valves open, expect a crisp, motorsport-inspired tone with pronounced overrun crackles. With valves closed, the system remains quiet and comfortable for daily driving—without drone when paired with the factory downpipe.\u003c\/p\u003e\n\u003chr data-start=\"1182\" data-end=\"1185\"\u003e\n\u003ch3 data-start=\"1187\" data-end=\"1203\"\u003eWhy It Works\u003c\/h3\u003e\n\u003cul data-start=\"1204\" data-end=\"1530\"\u003e\n\u003cli data-start=\"1204\" data-end=\"1294\"\u003e\n\u003cp data-start=\"1206\" data-end=\"1294\"\u003e\u003cstrong data-start=\"1206\" data-end=\"1244\"\u003eUltra-Light Titanium Construction:\u003c\/strong\u003e Significant weight savings over stainless steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1295\" data-end=\"1382\"\u003e\n\u003cp data-start=\"1297\" data-end=\"1382\"\u003e\u003cstrong data-start=\"1297\" data-end=\"1326\"\u003eElectronic Valve Control:\u003c\/strong\u003e Instantly switch between aggressive and refined sound\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1383\" data-end=\"1455\"\u003e\n\u003cp data-start=\"1385\" data-end=\"1455\"\u003e\u003cstrong data-start=\"1385\" data-end=\"1413\"\u003eOne-Piece System Design:\u003c\/strong\u003e No need to mix axle-backs or resonators\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1456\" data-end=\"1530\"\u003e\n\u003cp data-start=\"1458\" data-end=\"1530\"\u003e\u003cstrong data-start=\"1458\" data-end=\"1491\"\u003eMandrel-Bent Titanium Tubing:\u003c\/strong\u003e Maximizes flow and throttle response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1532\" data-end=\"1535\"\u003e\n\u003ch3 data-start=\"1537\" data-end=\"1556\"\u003eSound \u0026amp; Control\u003c\/h3\u003e\n\u003cul data-start=\"1557\" data-end=\"1737\"\u003e\n\u003cli data-start=\"1557\" data-end=\"1627\"\u003e\n\u003cp data-start=\"1559\" data-end=\"1627\"\u003e\u003cstrong data-start=\"1559\" data-end=\"1575\"\u003eValves Open:\u003c\/strong\u003e Loud, sharp, and performance-focused exhaust tone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1628\" data-end=\"1685\"\u003e\n\u003cp data-start=\"1630\" data-end=\"1685\"\u003e\u003cstrong data-start=\"1630\" data-end=\"1648\"\u003eValves Closed:\u003c\/strong\u003e Quiet, refined, and daily-drivable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1686\" data-end=\"1737\"\u003e\n\u003cp data-start=\"1688\" data-end=\"1737\"\u003e\u003cstrong data-start=\"1688\" data-end=\"1701\"\u003eNo Drone:\u003c\/strong\u003e When paired with the OEM downpipe\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1739\" data-end=\"1742\"\u003e\n\u003ch3 data-start=\"1744\" data-end=\"1770\"\u003eConstruction \u0026amp; Details\u003c\/h3\u003e\n\u003cul data-start=\"1771\" data-end=\"2076\"\u003e\n\u003cli data-start=\"1771\" data-end=\"1848\"\u003e\n\u003cp data-start=\"1773\" data-end=\"1848\"\u003e\u003cstrong data-start=\"1773\" data-end=\"1786\"\u003eMaterial:\u003c\/strong\u003e Full \u003cstrong data-start=\"1792\" data-end=\"1817\"\u003etitanium construction\u003c\/strong\u003e for extreme weight reduction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1849\" data-end=\"1929\"\u003e\n\u003cp data-start=\"1851\" data-end=\"1929\"\u003e\u003cstrong data-start=\"1851\" data-end=\"1870\"\u003eWeight Savings:\u003c\/strong\u003e Significantly lighter than factory and stainless systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1930\" data-end=\"1999\"\u003e\n\u003cp data-start=\"1932\" data-end=\"1999\"\u003e\u003cstrong data-start=\"1932\" data-end=\"1950\"\u003eCraftsmanship:\u003c\/strong\u003e Precision TIG welding and smooth mandrel bends\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2000\" data-end=\"2076\"\u003e\n\u003cp data-start=\"2002\" data-end=\"2076\"\u003e\u003cstrong data-start=\"2002\" data-end=\"2019\"\u003eExhaust Tips:\u003c\/strong\u003e Includes premium titanium tips for a motorsport finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2078\" data-end=\"2081\"\u003e\n\u003ch3 data-start=\"2083\" data-end=\"2102\"\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cul data-start=\"2103\" data-end=\"2164\"\u003e\n\u003cli data-start=\"2103\" data-end=\"2133\"\u003e\n\u003cp data-start=\"2105\" data-end=\"2133\"\u003e\u003cstrong data-start=\"2105\" data-end=\"2131\"\u003e2017–2024 Audi S4 (B9)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2134\" data-end=\"2164\"\u003e\n\u003cp data-start=\"2136\" data-end=\"2164\"\u003e\u003cstrong data-start=\"2136\" data-end=\"2162\"\u003e2018–2024 Audi S5 (B9)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":47524874027228,"sku":"721814382426","price":2699.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/files\/B9.jpg?v=1770947146"},{"product_id":"stainless-valved-catback-exhaust-system-for-audi-b8-b8-5-s4-s5","title":"Stainless Valved Catback Exhaust System for Audi B8 B8.5 S4 S5","description":"\u003cp data-start=\"304\" data-end=\"634\"\u003eTransform the sound and driving experience of your \u003cstrong data-start=\"355\" data-end=\"380\"\u003eAudi S4 or S5 B8\/B8.5\u003c\/strong\u003e with the \u003cstrong data-start=\"390\" data-end=\"423\"\u003eSTRATEC Valved Exhaust System\u003c\/strong\u003e. Designed for the supercharged V6 platform, this system delivers a \u003cstrong data-start=\"491\" data-end=\"517\"\u003eunique high-pitch tone\u003c\/strong\u003e while retaining deep, aggressive low-end character—creating a sound profile that stands out from traditional setups.\u003c\/p\u003e\n\u003cp data-start=\"636\" data-end=\"1031\"\u003eConstructed entirely from \u003cstrong data-start=\"662\" data-end=\"686\"\u003eT304 stainless steel\u003c\/strong\u003e and featuring a \u003cstrong data-start=\"703\" data-end=\"724\"\u003ehigh-pitch X-pipe\u003c\/strong\u003e, the system runs \u003cstrong data-start=\"742\" data-end=\"780\"\u003e2.5-inch tubing from front to rear\u003c\/strong\u003e, enhancing exhaust flow and sound across the entire RPM range. Integrated \u003cstrong data-start=\"855\" data-end=\"881\"\u003evacuum-actuated valves\u003c\/strong\u003e, controlled via an included \u003cstrong data-start=\"910\" data-end=\"928\"\u003ekey fob remote\u003c\/strong\u003e, allow instant switching between refined cruising and an aggressive, motorsport-inspired exhaust note.\u003c\/p\u003e\n\u003ch3 data-start=\"1033\" data-end=\"1049\"\u003eWhy It Works\u003c\/h3\u003e\n\u003cul data-start=\"1050\" data-end=\"1326\"\u003e\n\u003cli data-start=\"1050\" data-end=\"1149\"\u003e\n\u003cp data-start=\"1052\" data-end=\"1149\"\u003e\u003cstrong data-start=\"1052\" data-end=\"1081\"\u003eHigh-Pitch X-Pipe Design:\u003c\/strong\u003e Produces a sharper, more exotic tone while improving exhaust flow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1150\" data-end=\"1232\"\u003e\n\u003cp data-start=\"1152\" data-end=\"1232\"\u003e\u003cstrong data-start=\"1152\" data-end=\"1177\"\u003eVacuum Valve Control:\u003c\/strong\u003e On-demand sound adjustment using the included remote\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1233\" data-end=\"1326\"\u003e\n\u003cp data-start=\"1235\" data-end=\"1326\"\u003e\u003cstrong data-start=\"1235\" data-end=\"1259\"\u003eMandrel-Bent Tubing:\u003c\/strong\u003e Optimized flow for improved throttle response and power delivery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1328\" data-end=\"1347\"\u003eSound \u0026amp; Control\u003c\/h3\u003e\n\u003cul data-start=\"1348\" data-end=\"1602\"\u003e\n\u003cli data-start=\"1348\" data-end=\"1427\"\u003e\n\u003cp data-start=\"1350\" data-end=\"1427\"\u003e\u003cstrong data-start=\"1350\" data-end=\"1368\"\u003eValves Closed:\u003c\/strong\u003e Quiet and refined for daily driving and highway cruising\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1428\" data-end=\"1529\"\u003e\n\u003cp data-start=\"1430\" data-end=\"1529\"\u003e\u003cstrong data-start=\"1430\" data-end=\"1446\"\u003eValves Open:\u003c\/strong\u003e Aggressive, high-energy exhaust tone with strong low-end and high-RPM excitement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1530\" data-end=\"1602\"\u003e\n\u003cp data-start=\"1532\" data-end=\"1602\"\u003e\u003cstrong data-start=\"1532\" data-end=\"1551\"\u003eRemote Control:\u003c\/strong\u003e Instantly operate valves from inside the vehicle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1604\" data-end=\"1630\"\u003eConstruction \u0026amp; Details\u003c\/h3\u003e\n\u003cul data-start=\"1631\" data-end=\"1910\"\u003e\n\u003cli data-start=\"1631\" data-end=\"1709\"\u003e\n\u003cp data-start=\"1633\" data-end=\"1709\"\u003e\u003cstrong data-start=\"1633\" data-end=\"1646\"\u003eMaterial:\u003c\/strong\u003e T304 stainless steel for durability and corrosion resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1710\" data-end=\"1783\"\u003e\n\u003cp data-start=\"1712\" data-end=\"1783\"\u003e\u003cstrong data-start=\"1712\" data-end=\"1731\"\u003eWeight Savings:\u003c\/strong\u003e Approx. \u003cstrong data-start=\"1740\" data-end=\"1760\"\u003e12.3 lbs lighter\u003c\/strong\u003e than factory exhaust\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1784\" data-end=\"1853\"\u003e\n\u003cp data-start=\"1786\" data-end=\"1853\"\u003e\u003cstrong data-start=\"1786\" data-end=\"1804\"\u003eCraftsmanship:\u003c\/strong\u003e Precision TIG welding and smooth mandrel bends\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1854\" data-end=\"1910\"\u003e\n\u003cp data-start=\"1856\" data-end=\"1910\"\u003e\u003cstrong data-start=\"1856\" data-end=\"1876\"\u003eTubing Diameter:\u003c\/strong\u003e 2.5\" from front to exhaust tips\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1912\" data-end=\"1931\"\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cul data-start=\"1932\" data-end=\"2007\"\u003e\n\u003cli data-start=\"1932\" data-end=\"1969\"\u003e\n\u003cp data-start=\"1934\" data-end=\"1969\"\u003e\u003cstrong data-start=\"1934\" data-end=\"1967\"\u003e2010–2016 Audi S4 (B8 \/ B8.5)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1970\" data-end=\"2007\"\u003e\n\u003cp data-start=\"1972\" data-end=\"2007\"\u003e\u003cstrong data-start=\"1972\" data-end=\"2005\"\u003e2010–2016 Audi S5 (B8 \/ B8.5)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":47524924391644,"sku":"721814382433","price":1899.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/files\/304B8.jpg?v=1770023177"},{"product_id":"stainless-valved-catback-exhaust-system-for-audi-b9-s4-s5","title":"Stainless Valved Catback Exhaust System for Audi B9 S4 S5","description":"\u003cp data-start=\"323\" data-end=\"646\"\u003eThe \u003cstrong data-start=\"327\" data-end=\"348\"\u003eAudi B9 S4 and S5\u003c\/strong\u003e, powered by the \u003cstrong data-start=\"365\" data-end=\"382\"\u003eEA839 3.0L V6\u003c\/strong\u003e, offer strong performance from the factory—but the stock exhaust limits the engine’s true sound and character. The \u003cstrong data-start=\"498\" data-end=\"531\"\u003eSTRATEC Valved Exhaust System\u003c\/strong\u003e unlocks a more aggressive, performance-driven exhaust tone while retaining refined, OEM-like manners when desired.\u003c\/p\u003e\n\u003cp data-start=\"648\" data-end=\"919\"\u003eEngineered as a \u003cstrong data-start=\"664\" data-end=\"702\"\u003ecomplete, one-piece exhaust system\u003c\/strong\u003e, this setup runs from the \u003cstrong data-start=\"729\" data-end=\"772\"\u003edownpipe connection to the exhaust tips\u003c\/strong\u003e, eliminating the need to mix components from multiple suppliers. The result is consistent sound quality, proper fitment, and seamless performance.\u003c\/p\u003e\n\u003cp data-start=\"921\" data-end=\"1173\"\u003eWith valves open, expect a bold, motorsport-inspired exhaust note with pronounced overrun crackles. With valves closed, the system returns to a quiet, refined tone suitable for daily driving—without unwanted drone when paired with the factory downpipe.\u003c\/p\u003e\n\u003chr data-start=\"1175\" data-end=\"1178\"\u003e\n\u003ch3 data-start=\"1180\" data-end=\"1196\"\u003eWhy It Works\u003c\/h3\u003e\n\u003cul data-start=\"1197\" data-end=\"1450\"\u003e\n\u003cli data-start=\"1197\" data-end=\"1269\"\u003e\n\u003cp data-start=\"1199\" data-end=\"1269\"\u003e\u003cstrong data-start=\"1199\" data-end=\"1229\"\u003eComplete One-Piece System:\u003c\/strong\u003e No mixing of axle-backs or resonators\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1270\" data-end=\"1357\"\u003e\n\u003cp data-start=\"1272\" data-end=\"1357\"\u003e\u003cstrong data-start=\"1272\" data-end=\"1301\"\u003eElectronic Valve Control:\u003c\/strong\u003e Instantly switch between aggressive and refined sound\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1358\" data-end=\"1450\"\u003e\n\u003cp data-start=\"1360\" data-end=\"1450\"\u003e\u003cstrong data-start=\"1360\" data-end=\"1384\"\u003eMandrel-Bent Design:\u003c\/strong\u003e Optimized exhaust flow for improved throttle response and power\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1452\" data-end=\"1455\"\u003e\n\u003ch3 data-start=\"1457\" data-end=\"1476\"\u003eSound \u0026amp; Control\u003c\/h3\u003e\n\u003cul data-start=\"1477\" data-end=\"1685\"\u003e\n\u003cli data-start=\"1477\" data-end=\"1561\"\u003e\n\u003cp data-start=\"1479\" data-end=\"1561\"\u003e\u003cstrong data-start=\"1479\" data-end=\"1495\"\u003eValves Open:\u003c\/strong\u003e Aggressive tone with strong midrange and sharp overrun crackles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1562\" data-end=\"1631\"\u003e\n\u003cp data-start=\"1564\" data-end=\"1631\"\u003e\u003cstrong data-start=\"1564\" data-end=\"1582\"\u003eValves Closed:\u003c\/strong\u003e Quiet, refined, and OEM-like for daily driving\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1632\" data-end=\"1685\"\u003e\n\u003cp data-start=\"1634\" data-end=\"1685\"\u003e\u003cstrong data-start=\"1634\" data-end=\"1647\"\u003eNo Drone:\u003c\/strong\u003e When used with the factory downpipe\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1687\" data-end=\"1690\"\u003e\n\u003ch3 data-start=\"1692\" data-end=\"1718\"\u003eConstruction \u0026amp; Details\u003c\/h3\u003e\n\u003cul data-start=\"1719\" data-end=\"2008\"\u003e\n\u003cli data-start=\"1719\" data-end=\"1779\"\u003e\n\u003cp data-start=\"1721\" data-end=\"1779\"\u003e\u003cstrong data-start=\"1721\" data-end=\"1734\"\u003eMaterial:\u003c\/strong\u003e Full \u003cstrong data-start=\"1740\" data-end=\"1764\"\u003eT304 stainless steel\u003c\/strong\u003e construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1780\" data-end=\"1853\"\u003e\n\u003cp data-start=\"1782\" data-end=\"1853\"\u003e\u003cstrong data-start=\"1782\" data-end=\"1801\"\u003eWeight Savings:\u003c\/strong\u003e Approx. \u003cstrong data-start=\"1810\" data-end=\"1830\"\u003e16.4 lbs lighter\u003c\/strong\u003e than factory exhaust\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1854\" data-end=\"1923\"\u003e\n\u003cp data-start=\"1856\" data-end=\"1923\"\u003e\u003cstrong data-start=\"1856\" data-end=\"1874\"\u003eCraftsmanship:\u003c\/strong\u003e Precision TIG welding and smooth mandrel bends\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1924\" data-end=\"2008\"\u003e\n\u003cp data-start=\"1926\" data-end=\"2008\"\u003e\u003cstrong data-start=\"1926\" data-end=\"1943\"\u003eExhaust Tips:\u003c\/strong\u003e Includes premium tips for a clean, performance-oriented finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2010\" data-end=\"2013\"\u003e\n\u003ch3 data-start=\"2015\" data-end=\"2034\"\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cul data-start=\"2035\" data-end=\"2096\"\u003e\n\u003cli data-start=\"2035\" data-end=\"2065\"\u003e\n\u003cp data-start=\"2037\" data-end=\"2065\"\u003e\u003cstrong data-start=\"2037\" data-end=\"2063\"\u003e2017–2024 Audi S4 (B9)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2066\" data-end=\"2096\"\u003e\n\u003cp data-start=\"2068\" data-end=\"2096\"\u003e\u003cstrong data-start=\"2068\" data-end=\"2094\"\u003e2018–2024 Audi S5 (B9)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":47524924621020,"sku":"721814382440","price":1999.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/files\/304BLACK_6ebcf044-bce1-4885-9209-beaf0c2be076.jpg?v=1769993686"},{"product_id":"catted-stainless-exhaust-downpipe-for-audi-s4-s5-b9-3-0t","title":"Catted Stainless Exhaust Downpipe for Audi S4 S5 B9 3.0T","description":"\u003cp data-start=\"191\" data-end=\"509\"\u003eUpgrade exhaust flow, throttle response, and sound on your \u003cstrong data-start=\"250\" data-end=\"275\"\u003eAudi S4 or S5 B9 3.0T\u003c\/strong\u003e with the \u003cstrong data-start=\"285\" data-end=\"330\"\u003eSTRATEC Catted Stainless Exhaust Downpipe\u003c\/strong\u003e. Designed to reduce backpressure while retaining drivability, this downpipe delivers improved performance and a deeper, more aggressive exhaust tone compared to the factory unit.\u003c\/p\u003e\n\u003cp data-start=\"511\" data-end=\"722\"\u003eConstructed from \u003cstrong data-start=\"528\" data-end=\"560\"\u003ehigh-quality stainless steel\u003c\/strong\u003e, the downpipe features a \u003cstrong data-start=\"586\" data-end=\"619\"\u003ehigh-flow catalytic converter\u003c\/strong\u003e, offering a balanced upgrade for enthusiasts seeking stronger performance without excessive harshness.\u003c\/p\u003e\n\u003ch3 data-start=\"724\" data-end=\"740\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"741\" data-end=\"1035\"\u003e\n\u003cli data-start=\"741\" data-end=\"774\"\u003e\n\u003cp data-start=\"743\" data-end=\"774\"\u003eFits \u003cstrong data-start=\"748\" data-end=\"772\"\u003eAudi S4 \u0026amp; S5 B9 3.0T\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"775\" data-end=\"815\"\u003e\n\u003cp data-start=\"777\" data-end=\"815\"\u003e\u003cstrong data-start=\"777\" data-end=\"806\"\u003eHigh-flow catted downpipe\u003c\/strong\u003e design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"816\" data-end=\"887\"\u003e\n\u003cp data-start=\"818\" data-end=\"887\"\u003e\u003cstrong data-start=\"818\" data-end=\"850\"\u003eStainless steel construction\u003c\/strong\u003e for durability and heat resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"888\" data-end=\"938\"\u003e\n\u003cp data-start=\"890\" data-end=\"938\"\u003eReduces backpressure and improves exhaust flow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"939\" data-end=\"990\"\u003e\n\u003cp data-start=\"941\" data-end=\"990\"\u003eEnhances turbo response, horsepower, and torque\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"991\" data-end=\"1035\"\u003e\n\u003cp data-start=\"993\" data-end=\"1035\"\u003eProduces a deeper, sportier exhaust tone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1037\" data-end=\"1046\"\u003eNotes\u003c\/h3\u003e\n\u003cul data-start=\"1047\" data-end=\"1193\"\u003e\n\u003cli data-start=\"1047\" data-end=\"1088\"\u003e\n\u003cp data-start=\"1049\" data-end=\"1088\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1089\" data-end=\"1143\"\u003e\n\u003cp data-start=\"1091\" data-end=\"1143\"\u003eECU tuning may be required for optimal performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1144\" data-end=\"1193\"\u003e\n\u003cp data-start=\"1146\" data-end=\"1193\"\u003eDesigned for performance-focused applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":47524937203932,"sku":"721814382457","price":999.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/files\/S5-DOWN.jpg?v=1769994469"},{"product_id":"free-flow-304-stainless-exhaust-downpipe-for-audi-s4-s5-b8","title":"Free Flow 304 Stainless Exhaust Downpipe for Audi S4 S5 B8","description":"\u003cp data-start=\"212\" data-end=\"516\"\u003eImprove exhaust flow, throttle response, and overall performance on your \u003cstrong data-start=\"285\" data-end=\"310\"\u003eAudi S4 or S5 B8 3.0T\u003c\/strong\u003e with the \u003cstrong data-start=\"320\" data-end=\"358\"\u003eSTRATEC Free-Flow Exhaust Downpipe\u003c\/strong\u003e. Designed to reduce exhaust restriction, this downpipe helps unlock stronger power delivery and a more aggressive exhaust tone compared to the factory setup.\u003c\/p\u003e\n\u003cp data-start=\"518\" data-end=\"739\"\u003eConstructed from \u003cstrong data-start=\"535\" data-end=\"571\"\u003ehigh-quality 304 stainless steel\u003c\/strong\u003e, the downpipe offers excellent heat resistance, durability, and long-term corrosion protection, making it suitable for both daily driving and performance applications.\u003c\/p\u003e\n\u003ch3 data-start=\"741\" data-end=\"757\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"758\" data-end=\"1077\"\u003e\n\u003cli data-start=\"758\" data-end=\"791\"\u003e\n\u003cp data-start=\"760\" data-end=\"791\"\u003eFits \u003cstrong data-start=\"765\" data-end=\"789\"\u003eAudi S4 \u0026amp; S5 B8 3.0T\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"792\" data-end=\"857\"\u003e\n\u003cp data-start=\"794\" data-end=\"857\"\u003e\u003cstrong data-start=\"794\" data-end=\"823\"\u003eFree-flow downpipe design\u003c\/strong\u003e for improved exhaust efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"858\" data-end=\"931\"\u003e\n\u003cp data-start=\"860\" data-end=\"931\"\u003e\u003cstrong data-start=\"860\" data-end=\"896\"\u003e304 stainless steel construction\u003c\/strong\u003e for strength and heat resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"932\" data-end=\"987\"\u003e\n\u003cp data-start=\"934\" data-end=\"987\"\u003eReduces backpressure and improves throttle response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"988\" data-end=\"1038\"\u003e\n\u003cp data-start=\"990\" data-end=\"1038\"\u003eEnhances horsepower, torque, and exhaust sound\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1039\" data-end=\"1077\"\u003e\n\u003cp data-start=\"1041\" data-end=\"1077\"\u003eDirect bolt-on performance upgrade\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1079\" data-end=\"1088\"\u003eNotes\u003c\/h3\u003e\n\u003cul data-start=\"1089\" data-end=\"1235\"\u003e\n\u003cli data-start=\"1089\" data-end=\"1130\"\u003e\n\u003cp data-start=\"1091\" data-end=\"1130\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1131\" data-end=\"1185\"\u003e\n\u003cp data-start=\"1133\" data-end=\"1185\"\u003eECU tuning may be required for optimal performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1186\" data-end=\"1235\"\u003e\n\u003cp data-start=\"1188\" data-end=\"1235\"\u003eDesigned for performance-focused applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":47524954931420,"sku":"721814382464","price":999.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/files\/exhaustdown.jpg?v=1769996245"},{"product_id":"catted-high-flow-304-stainless-exhaust-downpipe-for-audi-rs5-2-9t","title":"Catted High Flow 304 Stainless Exhaust Downpipe for Audi RS5 2.9T","description":"\u003cp data-start=\"214\" data-end=\"545\"\u003eUnlock improved performance, faster turbo response, and a more aggressive exhaust tone on your \u003cstrong data-start=\"309\" data-end=\"326\"\u003eAudi RS5 2.9T\u003c\/strong\u003e with the \u003cstrong data-start=\"336\" data-end=\"373\"\u003eSTRATEC High-Flow Catted Downpipe\u003c\/strong\u003e. Engineered to reduce exhaust backpressure while maintaining drivability, this downpipe enhances power delivery and overall engine efficiency compared to the factory unit.\u003c\/p\u003e\n\u003cp data-start=\"547\" data-end=\"798\"\u003eConstructed from \u003cstrong data-start=\"564\" data-end=\"596\"\u003ehigh-quality stainless steel\u003c\/strong\u003e, the downpipe features a \u003cstrong data-start=\"622\" data-end=\"655\"\u003ehigh-flow catalytic converter\u003c\/strong\u003e, offering a balanced upgrade that improves exhaust flow without excessive harshness. Ideal for performance street builds and spirited driving.\u003c\/p\u003e\n\u003ch3 data-start=\"800\" data-end=\"816\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"817\" data-end=\"1126\"\u003e\n\u003cli data-start=\"817\" data-end=\"855\"\u003e\n\u003cp data-start=\"819\" data-end=\"855\"\u003eFits \u003cstrong data-start=\"824\" data-end=\"853\"\u003eAudi RS5 2.9T (2019–2022)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"856\" data-end=\"896\"\u003e\n\u003cp data-start=\"858\" data-end=\"896\"\u003e\u003cstrong data-start=\"858\" data-end=\"887\"\u003eHigh-flow catted downpipe\u003c\/strong\u003e design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"897\" data-end=\"968\"\u003e\n\u003cp data-start=\"899\" data-end=\"968\"\u003e\u003cstrong data-start=\"899\" data-end=\"931\"\u003eStainless steel construction\u003c\/strong\u003e for heat resistance and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"969\" data-end=\"1022\"\u003e\n\u003cp data-start=\"971\" data-end=\"1022\"\u003eReduces exhaust backpressure and improves airflow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1023\" data-end=\"1074\"\u003e\n\u003cp data-start=\"1025\" data-end=\"1074\"\u003eEnhances turbo response, horsepower, and torque\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1075\" data-end=\"1126\"\u003e\n\u003cp data-start=\"1077\" data-end=\"1126\"\u003eProduces a deeper, more aggressive exhaust tone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1128\" data-end=\"1137\"\u003eNotes\u003c\/h3\u003e\n\u003cul data-start=\"1138\" data-end=\"1284\"\u003e\n\u003cli data-start=\"1138\" data-end=\"1179\"\u003e\n\u003cp data-start=\"1140\" data-end=\"1179\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1180\" data-end=\"1234\"\u003e\n\u003cp data-start=\"1182\" data-end=\"1234\"\u003eECU tuning may be required for optimal performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1235\" data-end=\"1284\"\u003e\n\u003cp data-start=\"1237\" data-end=\"1284\"\u003eDesigned for performance-focused applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":47525485215964,"sku":"721814382617","price":999.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/files\/CATTED_48eb4c6e-5e5b-402c-a908-4476f96b993b.jpg?v=1770022147"},{"product_id":"catless-high-flow-304-stainless-exhaust-downpipe-for-audi-rs4-rs5-2-9t","title":"Catless High Flow 304 Stainless Exhaust Downpipe for Audi RS4 RS5 2.9T","description":"\u003cp data-start=\"259\" data-end=\"581\"\u003eMaximize exhaust flow and turbo performance on your \u003cstrong data-start=\"311\" data-end=\"335\"\u003eAudi RS4 or RS5 2.9T\u003c\/strong\u003e with the \u003cstrong data-start=\"345\" data-end=\"381\"\u003eSTRATEC Straight Header Downpipe\u003c\/strong\u003e. Designed as a \u003cstrong data-start=\"397\" data-end=\"428\"\u003efree-flow, catless downpipe\u003c\/strong\u003e, this system eliminates exhaust restriction to deliver faster turbo spool, stronger throttle response, and a significantly more aggressive exhaust tone.\u003c\/p\u003e\n\u003cp data-start=\"583\" data-end=\"873\"\u003eConstructed from \u003cstrong data-start=\"600\" data-end=\"632\"\u003ehigh-quality stainless steel\u003c\/strong\u003e, this straight downpipe is built to handle high heat and boost levels, making it ideal for \u003cstrong data-start=\"724\" data-end=\"782\"\u003etrack-focused builds and high-performance applications\u003c\/strong\u003e. The simplified straight-through design prioritizes airflow efficiency and power delivery.\u003c\/p\u003e\n\u003ch3 data-start=\"875\" data-end=\"891\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"892\" data-end=\"1302\"\u003e\n\u003cli data-start=\"892\" data-end=\"936\"\u003e\n\u003cp data-start=\"894\" data-end=\"936\"\u003eFits \u003cstrong data-start=\"899\" data-end=\"934\"\u003eAudi RS4 \u0026amp; RS5 2.9T (2019–2024)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"937\" data-end=\"1011\"\u003e\n\u003cp data-start=\"939\" data-end=\"1011\"\u003e\u003cstrong data-start=\"939\" data-end=\"984\"\u003eStraight \/ catless header downpipe design\u003c\/strong\u003e for maximum exhaust flow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1012\" data-end=\"1083\"\u003e\n\u003cp data-start=\"1014\" data-end=\"1083\"\u003e\u003cstrong data-start=\"1014\" data-end=\"1046\"\u003eStainless steel construction\u003c\/strong\u003e for durability and heat resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1084\" data-end=\"1129\"\u003e\n\u003cp data-start=\"1086\" data-end=\"1129\"\u003eReduces exhaust backpressure dramatically\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1130\" data-end=\"1191\"\u003e\n\u003cp data-start=\"1132\" data-end=\"1191\"\u003eImproves turbo spool, throttle response, and power output\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1192\" data-end=\"1260\"\u003e\n\u003cp data-start=\"1194\" data-end=\"1260\"\u003eProduces a louder, more aggressive motorsport-style exhaust tone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1261\" data-end=\"1302\"\u003e\n\u003cp data-start=\"1263\" data-end=\"1302\"\u003ePerformance-focused, free-flow design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1304\" data-end=\"1313\"\u003eNotes\u003c\/h3\u003e\n\u003cul data-start=\"1314\" data-end=\"1480\"\u003e\n\u003cli data-start=\"1314\" data-end=\"1377\"\u003e\n\u003cp data-start=\"1316\" data-end=\"1377\"\u003e\u003cstrong data-start=\"1316\" data-end=\"1375\"\u003eCatless design — intended for off-road \/ track use only\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1378\" data-end=\"1419\"\u003e\n\u003cp data-start=\"1380\" data-end=\"1419\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1420\" data-end=\"1480\"\u003e\n\u003cp data-start=\"1422\" data-end=\"1480\"\u003eECU tuning required for proper operation and performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":47525499306204,"sku":"721814382624","price":799.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/files\/CATLESS_d4eecb13-777a-4888-b826-3f8e05945f32.jpg?v=1770022515"},{"product_id":"titanium-valved-catback-exhaust-system-for-audi-rs4-rs5-b9-b9-5-2-9t","title":"Titanium Valved Catback Exhaust System for Audi RS4 RS5 B9 B9.5 2.9T","description":"\u003cp data-start=\"231\" data-end=\"592\"\u003eUpgrade sound, performance, and weight reduction on your \u003cstrong data-start=\"288\" data-end=\"312\"\u003eAudi RS4 or RS5 2.9T\u003c\/strong\u003e with the \u003cstrong data-start=\"322\" data-end=\"373\"\u003eSTRATEC Titanium Valved Cat-Back Exhaust System\u003c\/strong\u003e. Engineered for enthusiasts who demand premium materials and adjustable sound control, this system delivers an aggressive, motorsport-inspired exhaust tone when valves are open and refined, quiet operation when closed.\u003c\/p\u003e\n\u003cp data-start=\"594\" data-end=\"926\"\u003eConstructed from \u003cstrong data-start=\"611\" data-end=\"646\"\u003ehigh-grade lightweight titanium\u003c\/strong\u003e, this cat-back exhaust offers significant weight savings over stainless steel while providing excellent heat resistance and long-term durability. The \u003cstrong data-start=\"797\" data-end=\"822\"\u003evalved muffler design\u003c\/strong\u003e allows on-demand sound adjustment, making it ideal for both daily driving and spirited performance use.\u003c\/p\u003e\n\u003chr data-start=\"928\" data-end=\"931\"\u003e\n\u003ch3 data-start=\"933\" data-end=\"949\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"950\" data-end=\"1392\"\u003e\n\u003cli data-start=\"950\" data-end=\"992\"\u003e\n\u003cp data-start=\"952\" data-end=\"992\"\u003eFits \u003cstrong data-start=\"957\" data-end=\"990\"\u003eAudi RS4 \u0026amp; RS5 B9 \/ B9.5 2.9T\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"993\" data-end=\"1056\"\u003e\n\u003cp data-start=\"995\" data-end=\"1056\"\u003e\u003cstrong data-start=\"995\" data-end=\"1025\"\u003eFull titanium construction\u003c\/strong\u003e for extreme weight reduction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1057\" data-end=\"1123\"\u003e\n\u003cp data-start=\"1059\" data-end=\"1123\"\u003e\u003cstrong data-start=\"1059\" data-end=\"1093\"\u003eValved cat-back exhaust system\u003c\/strong\u003e with adjustable sound modes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1124\" data-end=\"1181\"\u003e\n\u003cp data-start=\"1126\" data-end=\"1181\"\u003eAggressive, high-energy exhaust tone with valves open\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1182\" data-end=\"1225\"\u003e\n\u003cp data-start=\"1184\" data-end=\"1225\"\u003eQuiet, refined sound with valves closed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1226\" data-end=\"1273\"\u003e\n\u003cp data-start=\"1228\" data-end=\"1273\"\u003eImproves exhaust flow and throttle response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1274\" data-end=\"1330\"\u003e\n\u003cp data-start=\"1276\" data-end=\"1330\"\u003ePrecision TIG-welded for strength and premium finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1331\" data-end=\"1392\"\u003e\n\u003cp data-start=\"1333\" data-end=\"1392\"\u003eDirect bolt-on installation using factory mounting points\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1394\" data-end=\"1397\"\u003e\n\u003ch3 data-start=\"1399\" data-end=\"1414\"\u003eSound Modes\u003c\/h3\u003e\n\u003cul data-start=\"1415\" data-end=\"1549\"\u003e\n\u003cli data-start=\"1415\" data-end=\"1485\"\u003e\n\u003cp data-start=\"1417\" data-end=\"1485\"\u003e\u003cstrong data-start=\"1417\" data-end=\"1433\"\u003eValves Open:\u003c\/strong\u003e Loud, sharp, and performance-focused exhaust note\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1486\" data-end=\"1549\"\u003e\n\u003cp data-start=\"1488\" data-end=\"1549\"\u003e\u003cstrong data-start=\"1488\" data-end=\"1506\"\u003eValves Closed:\u003c\/strong\u003e Refined, OEM-like tone for daily driving\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":47525511463132,"sku":"721814382631","price":2799.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/files\/TITAN.jpg?v=1770023010"},{"product_id":"stainless-304-valved-catback-exhaust-system-for-audi-rs4-rs5-b9-b9-5-2-9t","title":"Stainless 304 Valved Catback Exhaust System for Audi RS4 RS5 B9 B9.5 2.9T","description":"\u003cp data-start=\"225\" data-end=\"586\"\u003eEnhance sound, performance, and durability on your \u003cstrong data-start=\"276\" data-end=\"300\"\u003eAudi RS4 or RS5 2.9T\u003c\/strong\u003e with the \u003cstrong data-start=\"310\" data-end=\"372\"\u003eSTRATEC 304 Stainless Steel Valved Cat-Back Exhaust System\u003c\/strong\u003e. Engineered for drivers who want aggressive sound on demand with everyday refinement, this system delivers a powerful motorsport-inspired exhaust note when valves are open and a quieter, OEM-like tone when closed.\u003c\/p\u003e\n\u003cp data-start=\"588\" data-end=\"918\"\u003eConstructed from \u003cstrong data-start=\"605\" data-end=\"641\"\u003ehigh-quality 304 stainless steel\u003c\/strong\u003e, this exhaust offers excellent heat resistance, corrosion protection, and long-term reliability while remaining lighter than the factory exhaust. The \u003cstrong data-start=\"792\" data-end=\"817\"\u003evalved muffler design\u003c\/strong\u003e provides instant sound control, making it ideal for both daily driving and spirited performance use.\u003c\/p\u003e\n\u003chr data-start=\"920\" data-end=\"923\"\u003e\n\u003ch3 data-start=\"925\" data-end=\"941\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"942\" data-end=\"1392\"\u003e\n\u003cli data-start=\"942\" data-end=\"984\"\u003e\n\u003cp data-start=\"944\" data-end=\"984\"\u003eFits \u003cstrong data-start=\"949\" data-end=\"982\"\u003eAudi RS4 \u0026amp; RS5 B9 \/ B9.5 2.9T\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"985\" data-end=\"1054\"\u003e\n\u003cp data-start=\"987\" data-end=\"1054\"\u003e\u003cstrong data-start=\"987\" data-end=\"1023\"\u003e304 stainless steel construction\u003c\/strong\u003e for durability and longevity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1055\" data-end=\"1121\"\u003e\n\u003cp data-start=\"1057\" data-end=\"1121\"\u003e\u003cstrong data-start=\"1057\" data-end=\"1091\"\u003eValved cat-back exhaust system\u003c\/strong\u003e with adjustable sound modes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1122\" data-end=\"1179\"\u003e\n\u003cp data-start=\"1124\" data-end=\"1179\"\u003eAggressive, performance-focused tone with valves open\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1180\" data-end=\"1227\"\u003e\n\u003cp data-start=\"1182\" data-end=\"1227\"\u003eQuiet, refined operation with valves closed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1228\" data-end=\"1275\"\u003e\n\u003cp data-start=\"1230\" data-end=\"1275\"\u003eImproves exhaust flow and throttle response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1276\" data-end=\"1330\"\u003e\n\u003cp data-start=\"1278\" data-end=\"1330\"\u003ePrecision TIG-welded for strength and clean finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1331\" data-end=\"1392\"\u003e\n\u003cp data-start=\"1333\" data-end=\"1392\"\u003eDirect bolt-on installation using factory mounting points\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1394\" data-end=\"1397\"\u003e\n\u003ch3 data-start=\"1399\" data-end=\"1414\"\u003eSound Modes\u003c\/h3\u003e\n\u003cul data-start=\"1415\" data-end=\"1549\"\u003e\n\u003cli data-start=\"1415\" data-end=\"1484\"\u003e\n\u003cp data-start=\"1417\" data-end=\"1484\"\u003e\u003cstrong data-start=\"1417\" data-end=\"1433\"\u003eValves Open:\u003c\/strong\u003e Loud, deep, and motorsport-inspired exhaust note\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1485\" data-end=\"1549\"\u003e\n\u003cp data-start=\"1487\" data-end=\"1549\"\u003e\u003cstrong data-start=\"1487\" data-end=\"1505\"\u003eValves Closed:\u003c\/strong\u003e Refined, OEM-like sound for daily driving\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":47525517230300,"sku":"721814382648","price":1999.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/files\/304BLACK.jpg?v=1770023177"},{"product_id":"catless-high-flow-304-stainless-exhaust-downpipe-for-audi-a5-2-0t","title":"Catless High Flow 304 Stainless Exhaust Downpipe for Audi A5 2.0T","description":"\u003cp data-start=\"219\" data-end=\"542\"\u003eImprove exhaust flow, throttle response, and overall performance on your \u003cstrong data-start=\"292\" data-end=\"321\"\u003eAudi A5 2.0T (8W chassis)\u003c\/strong\u003e with the \u003cstrong data-start=\"331\" data-end=\"369\"\u003eSTRATEC Free-Flow Exhaust Downpipe\u003c\/strong\u003e. Designed to reduce exhaust restriction, this downpipe enhances engine efficiency and delivers a more aggressive, sport-oriented exhaust tone compared to the factory setup.\u003c\/p\u003e\n\u003cp data-start=\"544\" data-end=\"806\"\u003eConstructed from \u003cstrong data-start=\"561\" data-end=\"593\"\u003ehigh-quality stainless steel\u003c\/strong\u003e, this downpipe is built to withstand high heat and daily driving conditions while maintaining long-term durability. The \u003cstrong data-start=\"714\" data-end=\"747\"\u003efree-flow header-style design\u003c\/strong\u003e prioritizes airflow for improved response and performance.\u003c\/p\u003e\n\u003ch3 data-start=\"808\" data-end=\"824\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"825\" data-end=\"1177\"\u003e\n\u003cli data-start=\"825\" data-end=\"865\"\u003e\n\u003cp data-start=\"827\" data-end=\"865\"\u003eFits \u003cstrong data-start=\"832\" data-end=\"863\"\u003eAudi A5 2.0T 8W (2021–2023)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"866\" data-end=\"907\"\u003e\n\u003cp data-start=\"868\" data-end=\"907\"\u003e\u003cstrong data-start=\"868\" data-end=\"905\"\u003eFree-flow exhaust downpipe design\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"908\" data-end=\"979\"\u003e\n\u003cp data-start=\"910\" data-end=\"979\"\u003e\u003cstrong data-start=\"910\" data-end=\"942\"\u003eStainless steel construction\u003c\/strong\u003e for heat resistance and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"980\" data-end=\"1033\"\u003e\n\u003cp data-start=\"982\" data-end=\"1033\"\u003eReduces exhaust backpressure and improves airflow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1034\" data-end=\"1088\"\u003e\n\u003cp data-start=\"1036\" data-end=\"1088\"\u003eEnhances throttle response, horsepower, and torque\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1089\" data-end=\"1133\"\u003e\n\u003cp data-start=\"1091\" data-end=\"1133\"\u003eProduces a deeper, sportier exhaust tone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1134\" data-end=\"1177\"\u003e\n\u003cp data-start=\"1136\" data-end=\"1177\"\u003ePrecision-engineered for proper fitment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1179\" data-end=\"1188\"\u003eNotes\u003c\/h3\u003e\n\u003cul data-start=\"1189\" data-end=\"1335\"\u003e\n\u003cli data-start=\"1189\" data-end=\"1230\"\u003e\n\u003cp data-start=\"1191\" data-end=\"1230\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1231\" data-end=\"1285\"\u003e\n\u003cp data-start=\"1233\" data-end=\"1285\"\u003eECU tuning may be required for optimal performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1286\" data-end=\"1335\"\u003e\n\u003cp data-start=\"1288\" data-end=\"1335\"\u003eDesigned for performance-focused applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":47527740834012,"sku":"721814382655","price":599.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/files\/A5DOWN.jpg?v=1770103570"},{"product_id":"single-catless-high-flow-stainless-exhaust-downpipe-for-a4-a5-q5-b9-5-2-0t","title":"Single Catless High Flow Stainless Exhaust Downpipe for A4 A5 Q5 B9.5 2.0T","description":"\u003cp data-start=\"219\" data-end=\"542\"\u003eUpgrade exhaust flow, throttle response, and overall performance on your \u003cstrong data-start=\"314\" data-end=\"346\"\u003eAudi A4, A5, or Q5 B9.5 2.0T\u003c\/strong\u003e with the \u003cstrong data-start=\"356\" data-end=\"399\"\u003eSTRATEC Stainless Steel Single Downpipe\u003c\/strong\u003e. Designed to reduce exhaust restriction, this downpipe improves engine efficiency and delivers a sharper, sportier exhaust tone compared to the factory unit.\u003c\/p\u003e\n\u003cp data-start=\"559\" data-end=\"829\"\u003eConstructed from \u003cstrong data-start=\"576\" data-end=\"608\"\u003ehigh-quality stainless steel\u003c\/strong\u003e, the downpipe features an \u003cstrong data-start=\"635\" data-end=\"661\"\u003eintegrated heat shield\u003c\/strong\u003e to help manage engine bay temperatures and protect surrounding components from excessive heat. Precision-formed tubing ensures smooth airflow and long-term durability.\u003c\/p\u003e\n\u003ch3 data-start=\"831\" data-end=\"847\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"848\" data-end=\"1228\"\u003e\n\u003cli data-start=\"848\" data-end=\"900\"\u003e\n\u003cp data-start=\"850\" data-end=\"900\"\u003eFits \u003cstrong data-start=\"855\" data-end=\"898\"\u003eAudi A4 \/ A5 \/ Q5 B9.5 2.0T (2021–2024)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"901\" data-end=\"957\"\u003e\n\u003cp data-start=\"903\" data-end=\"957\"\u003e\u003cstrong data-start=\"903\" data-end=\"929\"\u003eSingle downpipe design\u003c\/strong\u003e for improved exhaust flow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"958\" data-end=\"1029\"\u003e\n\u003cp data-start=\"960\" data-end=\"1029\"\u003e\u003cstrong data-start=\"960\" data-end=\"992\"\u003eStainless steel construction\u003c\/strong\u003e for heat resistance and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1030\" data-end=\"1083\"\u003e\n\u003cp data-start=\"1032\" data-end=\"1083\"\u003e\u003cstrong data-start=\"1032\" data-end=\"1058\"\u003eIntegrated heat shield\u003c\/strong\u003e for thermal protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1084\" data-end=\"1139\"\u003e\n\u003cp data-start=\"1086\" data-end=\"1139\"\u003eReduces backpressure and improves throttle response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1140\" data-end=\"1189\"\u003e\n\u003cp data-start=\"1142\" data-end=\"1189\"\u003eEnhances horsepower, torque, and exhaust tone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1190\" data-end=\"1228\"\u003e\n\u003cp data-start=\"1192\" data-end=\"1228\"\u003eDirect bolt-on performance upgrade\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1230\" data-end=\"1239\"\u003eNotes\u003c\/h3\u003e\n\u003cul data-start=\"1240\" data-end=\"1386\"\u003e\n\u003cli data-start=\"1240\" data-end=\"1281\"\u003e\n\u003cp data-start=\"1242\" data-end=\"1281\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1282\" data-end=\"1336\"\u003e\n\u003cp data-start=\"1284\" data-end=\"1336\"\u003eECU tuning may be required for optimal performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1337\" data-end=\"1386\"\u003e\n\u003cp data-start=\"1339\" data-end=\"1386\"\u003eDesigned for performance-focused applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":47527761117404,"sku":"721814382662","price":549.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/files\/A5SINGLE.jpg?v=1770104073"},{"product_id":"single-oem-stainless-exhaust-downpipe-for-a4-a5-q5-b9-5-2-0t","title":"Single OEM Stainless Exhaust Downpipe for A4 A5 Q5 B9.5 2.0T","description":"\u003cp data-start=\"235\" data-end=\"536\"\u003eMaintain factory drivability while refreshing or upgrading your exhaust system with the \u003cstrong data-start=\"323\" data-end=\"368\"\u003eSTRATEC OEM-Style Catted Exhaust Downpipe\u003c\/strong\u003e for \u003cstrong data-start=\"373\" data-end=\"404\"\u003eAudi A4, A5, and Q5 B9 2.0T\u003c\/strong\u003e models. Designed to match OEM fitment and function, this downpipe provides reliable performance with a direct bolt-on installation.\u003c\/p\u003e\n\u003cp data-start=\"538\" data-end=\"836\"\u003eConstructed from \u003cstrong data-start=\"555\" data-end=\"587\"\u003ehigh-quality stainless steel\u003c\/strong\u003e, the downpipe features an \u003cstrong data-start=\"614\" data-end=\"648\"\u003eintegrated catalytic converter\u003c\/strong\u003e, helping maintain smooth operation, proper exhaust flow, and emissions-conscious performance similar to the factory unit. Ideal as a replacement or mild upgrade for daily-driven vehicles.\u003c\/p\u003e\n\u003ch3 data-start=\"838\" data-end=\"854\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"855\" data-end=\"1175\"\u003e\n\u003cli data-start=\"855\" data-end=\"905\"\u003e\n\u003cp data-start=\"857\" data-end=\"905\"\u003eFits \u003cstrong data-start=\"862\" data-end=\"903\"\u003eAudi A4 \/ A5 \/ Q5 B9 2.0T (2017–2021)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"906\" data-end=\"946\"\u003e\n\u003cp data-start=\"908\" data-end=\"946\"\u003e\u003cstrong data-start=\"908\" data-end=\"937\"\u003eOEM-style catted downpipe\u003c\/strong\u003e design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"947\" data-end=\"985\"\u003e\n\u003cp data-start=\"949\" data-end=\"985\"\u003e\u003cstrong data-start=\"949\" data-end=\"983\"\u003eIntegrated catalytic converter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"986\" data-end=\"1062\"\u003e\n\u003cp data-start=\"988\" data-end=\"1062\"\u003e\u003cstrong data-start=\"988\" data-end=\"1020\"\u003eStainless steel construction\u003c\/strong\u003e for durability and corrosion resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1063\" data-end=\"1118\"\u003e\n\u003cp data-start=\"1065\" data-end=\"1118\"\u003eMaintains factory-like exhaust tone and drivability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1119\" data-end=\"1175\"\u003e\n\u003cp data-start=\"1121\" data-end=\"1175\"\u003eDirect bolt-on replacement using OEM mounting points\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1177\" data-end=\"1186\"\u003eNotes\u003c\/h3\u003e\n\u003cul data-start=\"1187\" data-end=\"1329\"\u003e\n\u003cli data-start=\"1187\" data-end=\"1228\"\u003e\n\u003cp data-start=\"1189\" data-end=\"1228\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1229\" data-end=\"1285\"\u003e\n\u003cp data-start=\"1231\" data-end=\"1285\"\u003eDesigned as an OEM-style replacement or mild upgrade\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1286\" data-end=\"1329\"\u003e\n\u003cp data-start=\"1288\" data-end=\"1329\"\u003eCompatible with factory exhaust systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":47527767474396,"sku":"721814382679","price":799.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/files\/oem_351c5097-0d42-44a9-86c9-5c0f0047265c.jpg?v=1770104483"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/3005\/6412\/collections\/S3DOWN.jpg?v=1770021389","url":"https:\/\/bullboostperformance.com\/collections\/audi-rs5-s5-a5.oembed","provider":"Bull Boost Performance","version":"1.0","type":"link"}