Process West Intake Manifold Cable Throttle Reverse Orientation (suits Subaru 01-05 WRX/STI) - Black EJ257 and solid yet thin-wall construction

and solid yet thin-wall construction

Vehicle Application

Bilstein Evo T1

The kick-down switch is disabled in manual shift mode

✅ CNC-machined billet aluminium for precision fit and long-term durability

Process West Intake Manifold Cable Throttle Reverse Orientation (suits Subaru 01-05 WRX/STI) - Black EJ257 and solid yet thin-wall constructionFull Billet Aluminium Plenum with Billet Bell Mouth ended Runners CNC mandrel bent tube components Suited to setups not requiring Factory AC. 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