GrimmSpeed Boost Control Solenoid for Subaru Models H&R See more NX Nitrous Express

See more NX Nitrous Express

ARP L19 head studs for the 6-bolt 4G63 1G DSM and GVR4 models

• Comes with Mounting Hardware

(47) Titanium Pieces

The Mishimoto racing thermostat for 1993-1998 Toyota Supra opens up at 154°F compared to the OEM thermostat at 180°F

GrimmSpeed Boost Control Solenoid for Subaru Models H&R See more NX Nitrous ExpressThe GrimmSpeed 3 port electronic boost control solenoid (EBCS) for Subaru WRX, STi and Legacy GT models will allow for extremely high resolution boost control, providing your tuner with the hardware they need to safely tune your car with rock solid boost levels. You'll be able to spool your turbo quicker and maintain tight control of boost levels throughout your power curve. In addition, this solenoid features a balanced valve to withstand up to