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The SpeedFactory Racing 4-Port Boost Control Solenoid Kit allows precise boost control with a PWM (pulse width modulation) signal from a source (Engine Control Module or Electronic Boost Controller)
It may not fit the K20Z3/K24 water neck
the dual stainless-steel throttle return springs provide extra safety and longevity
“the customer” are buying a premium product that you can simply fit and forget for the life of the vehicle
for use with our Uprated 14mm heads stud kits RCM2902 & RCM593
Spoon Sports Rigid Collar - Lexus GS-F URL10 - Front 51220-SNA-A03 The SpeedFactory Racing 4-Port BoostDeveloped by Spoon Sports, the Japanese Honda tuning specialists, Rigid Collars are precision machined aluminium rings that lock your subframe to the chassis. Factories drill the subframe bolt holes oversized so components drop in fast on the production line, and that clearance stays for the life of the car. It leaves the subframe sitting a fraction off centre, dulling steering response and letting vibration through the floor. Fit a set and the bolts
