GFB T9020 RESPONS TMS ADJUSTABLE BIAS VENTING DIVERTER VALVE - TOYOTA SUPRA JZA80 Expansion Cap Ideal for use in fog

Ideal for use in fog light and cornering light applications

2 SEAT LEON FR / CUPRA MK3 (2012-2016)

MAXTON RACING SIDE SKIRTS DIFFUSERS V2 HONDA CIVIC X TYPE-R (2017-)

Rear Side Splitters VW Passat B7 R-Line Variant

Proven power increases for fast road & track

GFB T9020 RESPONS TMS ADJUSTABLE BIAS VENTING DIVERTER VALVE - TOYOTA SUPRA JZA80 Expansion Cap Ideal for use in fogAll the performance with or without the noise! If cars like yours typically suffer issues such as backfiring and stalling when using a fixed ratio atmosphere venting BOV, the Respons can help. By adjusting the venting bias to suit the car you can achieve a blow off sound without having to put up with the issues. Like all GFB valves, the Respons utilises GFBs proven TMS Technology to ensure rapid boost recovery on gearshift and optimum throttle