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Includes removable stainless steel Competition Lower Baffle with Viton one-way flapper valves
The OEM lower riser contains a diverter that restricts flow -- IAG's unit eliminates this diverter entirely
Improves traction by shifting the energy to the tires rather than wrestling with the movement of the differential
Seibon Carbon Fiber STI Style Hood Scoop Subaru WRX 2006-2007 STI 2006-2007
Boomba Racing Recirculating Bypass Valve - 2015-2021 Subaru STI PDM_side-skirts Includes removable stainless steel CompetitionRallySport Direct proudly carries quality performance upgrades and accessories brought to you by Boomba Racing. On this page, you are looking at the Boomba Racing Recirculating Bypass Valve. This is a high performance bypass valve that is a direct replacement for your factory unit that has been designed to work faster, more efficiently, and strong enough to handle the power upgrades in your application. DETAILS: Precision machined out of aircraft