Process West Intake Manifold Black (Reverse Orientation) - Subaru STI VA Girodisc A'PEXi Original Accelerator Controller with

A'PEXi Original Accelerator Controller with 7-modes (3 ECO Modes

Forgetting to check the condition of your air filter can have a dramatic effect on vehicle performance and fuel economy

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Full 3 inch straight structure to improve exhaust flow

Process West Intake Manifold Black (Reverse Orientation) - Subaru STI VA Girodisc A'PEXi Original Accelerator Controller withThe 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 redesign of the original ground breaking "Corsa Veloce" product range. Available in two major configurations they feature a full billet plenum with generous billet bell mouths and