Process West Black Reverse Inlet Manifold - Cable Throttle - WRX / STI 2001 - 2005 Model_Forester 2003-2005 the case is removed from

the case is removed from the mill and placed into a block oven at a low temperature

The "FineTune" belt has been designed with nothing but performance in mind

intercooler and connecting pipe work can all see a build up of oil over a period of time which in turn slows air flow

3-Way independent damping adjustment

but perhaps even more beneficial is its access to a vast amount of fast moving cold air

Process West Black Reverse Inlet Manifold - Cable Throttle - WRX / STI 2001 - 2005 Model_Forester 2003-2005 the case is removed fromThe 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 configurations they feature a full billet plenum with generous billet bell