Process West Intake Manifold Street Version Polished Subaru 2004-2021 STI

-Street version
-Full billet aluminum plenum
-Biller bell mouth ended runners
-CNC mandrel bent tube components
-Billet/polished finish
-The manifold is the result of years of research and testing, multiple prototypes and ground-up redesign of the original groundbreaking "Corsa Veloce" product range
-High-end TIG welding assembly makes them suitable for up to 100psi boosted applications
-The plenum volume and runner length combination has been selected for aggressive low and mid-range torque while opening up power higher in the rev range
-The plenum volume is large enough for serious gains but is still compatible with factory AC
-The Street version is suitable for any level of performance modification as they have conducted tests on completely stock engine/turbo/fuel system setups with approximately 9% gains in torque and power level, with the same percentage gain on highly modified setups running E85
-For a fully streetable but aggressive setup, while retaining the comfort of AC, the Street version manifold is the solution

Please verify that your car is Drive by wire throttle body before ordering.