Process West Intake Manifold Stock Orientation to Bosch Drive-by-Wire 74mm Throttle Body - Silver 2012-ram-1500-esi4100959 Vacuum/boost reference line required for

Vacuum/boost reference line required for proper operation

Upgraded H beam design greatly increases strength and durability

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using advanced CAD and CFD tech to create something that stands out for style

Process West Intake Manifold Stock Orientation to Bosch Drive-by-Wire 74mm Throttle Body - Silver 2012-ram-1500-esi4100959 Vacuum/boost reference line required forThe Process West billet intake manifold is the result of years of research, multiple prototypes and an uncompromising design process. It is the highest level of induction engineering available for the Subaru WRX and STI, where precision aesthetics and outright performance are equally important. Billet construction throughout A full billet plenum with generous billet bell mouths and thick wall polished CNC mandrel bent tube components, assembled with