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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
Designed to improve performance without changing the OEM factory look of the engine bay
thatâs EXACTLY what we mean
so you move more air and get more bass
Mounting Methods: Brake Light
Bass boost adjustable +12 dB (45 Hz)
GFB T9000 Diverter / Blow off Valve Fits Subaru Impreza ST 99 - 00 rear diffuser extension Designed to improve performance withoutRESPONS TMS : SMARTER THAN A DUAL PORT BLOW OFF VALVE Atmosphere venting BOV wont work on your car? Try a GFB Respons youll be surprised! Just another dual port BOV? 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 venting bias adjustment system, the Respons allows you to precisely control how much air vents from each of the two outlets. Why is this so important?