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striking a balanced between street-comfort and spirited circuit driving
polished 304 stainless steel muffler which improves performance across the power band while maintaining a great tone
Designed to improve throttle response and engine sound
Large Conical Filter:
Go Fast Bits Respons TMS Blow Off Valve 2008-2010+ WRX / 2005-2009 Legacy GT VAB striking a balanced between street-comfortAtmosphere venting BOV wont work on your car? Try a Go Fast Bits Respons! On the surface it may look like just another dual port blow off valve, but the Respons is actually much more than that. Featuring GFBs patented venting bias adjustment system, the Respons allows you to precisely control how much air vents from each of the two outlets. Using GFBs TMS (Turbo Management System) principal, tests show that the Respons can return the engine to peak
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