Process West Intake Manifold Street Version Subaru STI 2004-2021 | PWIM002 1300 High-Strength Forged AluminumDesigned to withstand

High-Strength Forged AluminumDesigned to withstand high cylinder pressures and aggressive tuning

Dual Tip Diameter: 120mm (4

so you know you are getting one of the best products possible from one of the most respected names in automotive performance

5XT-R is a little tweak to our already popular Dom 2

this atmospheric diverter valve dumps the charge-air to atmosphere creating the "Whoosh" sound most commonly associated with rally cars when the throttle is lifted

Process West Intake Manifold Street Version Subaru STI 2004-2021 | PWIM002 1300 High-Strength Forged AluminumDesigned to withstandProduct Fitment: 2004 2021 Subaru STI The Process West Billet Intake Manifold range represents the pinnacle of design, engineering, and performance for Subaru WRX and STI platforms. Born from years of R&D, extensive testing, and countless prototype iterations, this manifold is the result of a no compromise approach to performance and aesthetics. Crafted for both street and race applications, the manifold is available in multiple configurations to suit