GrimmSpeed 3-Port Electronic Boost Control Solenoid Subaru WRX 2002-2005 | 057001 STI_2004-2007 FITMENT: All evo 8 +9's

FITMENT: All evo 8 +9's 03+ All

It costs ARP a lot more to make their SRT-4 head studs this way

Whiteline 22mm Adjustable Front Sway bar 93-00 GC8 2

Bump-steer is the concept of bumps or imperfections in the road causing a car to steer off-track on its own

Some AEM air intakes are not legal for sale or use in California and other states adopting California emission standards while others are 50 state legal

GrimmSpeed 3-Port Electronic Boost Control Solenoid Subaru WRX 2002-2005 | 057001 STI_2004-2007 FITMENT: All evo 8 +9'sFitment Information: 2002 2005 Subaru WRX Features: The GrimmSpeed Boost Control Solenoid is the most complete and easy to use 3 Port Electronic BCS for your 02 05 WRX. Unlike your OEM 2 port solenoid, the GrimmSpeed BCS will allow for extremely high resolution boost control at elevated boost pressures, providing your tuner with the hardware needed to safely tune your car with rock solid boost levels. Using our solenoid, you are able to spool your