GrimmSpeed Boost Control Solenoid - Subaru 06-07 WRX/04-07 STi (057002) StillenShipping_30 0 GTS Description_DEF Disc Brake

0 GTS Description_DEF Disc Brake Pad and Rotor / Drum Brake Shoe and Drum Kit Description_DES S5 Kits Yellowstuff and GD Rotors Description_EXT S5 Kits Yellowstuff and GD Rotors Description_FAB S5 Kits Yellowstuff and GD Rotors Description_FAB Light Truck

without added maintenance or NVH

screws and Inconel sheath

We extensively track and street tested several iterations to deliver a system that not only makes your MK8 Golf R look great

GrimmSpeed Boost Control Solenoid - Subaru 06-07 WRX/04-07 STi (057002) StillenShipping_30 0 GTS Description_DEF Disc BrakeGrimmSpeed is proud to provide the most complete and easy to use 3 Port Electronic Boost Solenoid for available for all turbo Subarus. Unlike your OEM 2 port solenoid, the GrimmSpeed BCS will allow for extremely high resolution boost control, providing your tuner with the hardware he needs to safely tune your car with rock solid boost levels. Using our solenoid, you are able to spool your turbo quicker and maintain tight control of boost levels