GFB RESPONS TMS (WRX/STi MY99-00, B4 Legacy, GT/XT Forester MY98-04) Cu2 com I'll send you a

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advanced manufacturing techniques

New closed-loop boost control strategy

resulting in lost efficiency

GFB RESPONS TMS (WRX/STi MY99-00, B4 Legacy, GT/XT Forester MY98-04) Cu2 com I'll send you aGFB RESPONS TMS (WRX STi MY99 00, B4 Legacy, GT XT Forester MY98 04) On the surface it may look like just another dual port blow off valve, but the Respons is actually much more than that. Featuring GFB's patented 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? Two key reasons: Adjust how loud the blow off sound is. Recirculate all of the air for