GFB T9025 RESPONS TMS ADJUSTABLE BIAS VENTING DIVERTER VALVE - VW POLO MK4 9N GTI MMR03-1601 All come pre-assembled with the

All come pre-assembled with the ball and cups encapsulated within a plated metal outer shell secured by snap-rings and now include a 27mm spanner for adjustment

AIRTEC Motorsport Enclosed CAIS – Dyno Power 289

9 TDI PD and non-PD 2000 to 2004

Fits to: OEM/Scorpion Exhaust

-  UV protective coating

GFB T9025 RESPONS TMS ADJUSTABLE BIAS VENTING DIVERTER VALVE - VW POLO MK4 9N GTI MMR03-1601 All come pre-assembled with theAll 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