Process West Intake Manifold - Fits 2006-2021 Subaru STI / 06-14 WRX Throttle Body Position:Stock the Serpentine Race Kit with

the Serpentine Race Kit with the F-1A ProCharger features a 12 rib drive and the 800+ horsepower intercooler as standard equipment

It left something to be desired for those who demand more from our vehicles

This is the same Overflow Tank that is included with our 2008-2014 STI Front Mount Intercooler Kits

Rubber bushings tend to get soft and pliable over time and allow the sway bar to flex too much

carbon fiber production process

Process West Intake Manifold - Fits 2006-2021 Subaru STI / 06-14 WRX Throttle Body Position:Stock the Serpentine Race Kit withProcess West Intake Manifold Fits 2006 2021 Subaru STI 06 14 WRX The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple prototypes and a ground up fully featured design process that makes this a key asset of our product range. Available in two major