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Designed for heavily modified naturally aspirated engines as well as for turbocharged applications that require more exhaust flow than Skunk2's 70mm MegaPower R Exhausts provide
The coils require a method of retention
Tapping the head will require a 6
STi MY97-00
SpeedFactory 4-Port Boost Control Solenoid Kit King Designed for heavily modified naturallySpeedFactory 4 Port Boost Control Solenoid Kit 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). This solenoid can raise the boost level as high as 6 7 times the spring pressure of the wastegate and offers very precise control at very high boost levels. The 4 Port Solenoid also allows you to use much