GFB - Go Fast Bits T9002 Respons Adjustable Sound BOV Diverter Valve

The GFB Respons T9002 is a fully adjustable sound blow off valve (BOV) and diverter valve for turbocharged engines. It is designed to improve throttle response and reduce turbo lag, while letting you tune how much of the vented air goes to atmosphere and how much is recirculated.

Turbo Management System (TMS): GFB applies the TMS name to diverter valves with features aimed at reducing turbo lag. According to GFB testing, TMS features can return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears.

Adjustable venting bias: The Respons uses GFB's patented adjustable venting bias system, also found on the Stealth FX. The amount of air vented to recirculation or to atmosphere can be varied continuously, working like a volume dial for the blow-off sound. Fine-tuning the venting ratio is intended to give an audible blow-off sound without a check engine light, running rich, stalling, increased fuel use or other problems commonly associated with atmosphere-venting valves on cars with MAF sensors.

Key Features:

• Advanced TMS turbo lag reduction features
• Spring pre-load adjustment for maximum response
• Full progressive bias adjustment from recirculation (silent) to atmosphere (loud)
• Bias adjusted manually via the cap ring
• Can be locked off in full recirculation mode for legality purposes

Best choice for:

• Quick and easy venting bias adjustment
• Adding blow-off noise on cars that are sensitive to atmosphere venting, such as VAG applications