RCM (Roger Clark Motorsport) 3 port boost controller kits include a plug and play adaptor, giving you a simple, direct fit boost control solenoid for all Impreza MY99+ models, including WRX, STI, Turbo and GT.
Made with the same Pierburg solenoid units as Prodrive use on their own 3 port solenoid kit found on the WR1, the RCM kit allows you to safely raise the cars boost beyond its factory level whilst retaining total control and improivng turbo response.
