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N54 N55 T4 Single Turbo Top Mount Hot Parts Kit 44mm WG For BMW E F Series 135i 335i

Part Number: 720595375535
Bull Boost Performance
$999.95
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T4 Single Turbo Top Mount Hot Parts Kit 44mm WG Port For BMW N54 N55 With Downpipe kit –

*Patent Pending*

Introducing our newly released patent pending T4 Top Mount Turbo Hot Parts Kit designed specifically for BMW N54 and N55 engines. This kit is engineered for enthusiasts upgrading to a single turbo setup, offering superior fitment, durability, and performance gains.

Key Features:

  • T4 turbo flange top-mount design for optimal turbo placement and heat management

  • Integrated 44mm wastegate port for accurate boost control and easier plumbing

  • Compatible with both BMW N54 and N55 platforms

  • Dual O2 sensor ports on each side of the manifold for full tuning and monitoring flexibility

  • Includes provisions for downpipe connection to simplify installation

  • Constructed from high-temperature resistant materials for maximum durability under extreme conditions

This kit is ideal for street, track, or high-horsepower builds seeking a solid foundation for single turbo conversion.

Customer Reviews

Based on 3 reviews
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D
Don
Isaiah

Do you have any video to Put this kit in your car ? If you do please share . Where do you get rest of the parts too please share the information with us it would help because I am thinking buy this kit but I dont have much information about this kit .

I
Isaiah
Fits good but…

The manifold itself fits perfectly on my n55 (have yet to drop the motor back in the car this is only test fitted while rebuilding the motor) but it does have some issues. The manifold itself blocks the coolant port on the block that goes to the thermostat. There’s only 2 inches of clearance as well so going to be insanely tight fit to try to make something work. Also using a sportsman frame turbo the compressor housing sits in the way of the V-band fitting for the waste gate. Different waste gate placement would be an amazing benefit.

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S
Sebastián

Good