Received the 22psi Wastegate and was impressed with it. I tested it and it started to open around 20 psi. Since I am only planning on running between 12-16 psi I opened it up and removed the smaller Spring. The spring pressure is now set at around 8 psi and I can adjust with my EWG 3 way Solenoid to get the desired pressure. Thank you Bull Boost for a great product and hope it lasts a long time.