GFB T9659 DVX - Upgrade Recirc / Blow Off Valve - Audi S3 8V 4 series The innovative design increases the

The innovative design increases the heat transfer surface area by approximately 15% compared to standard tubes

Designed for left-hand-drive vehicles only

Remove the film to reveal the deep gloss black finish

Better control when trail braking and under repeated high-speed stops

Valve actuator switch for M2 M3 M4

GFB T9659 DVX - Upgrade Recirc / Blow Off Valve - Audi S3 8V 4 series The innovative design increases theIncreased boost holding and throttle response with total volume control! GFBs DVX range takes the extremely popular DV+ Diverter Valve performance and fit, then adds our patented Venting Bias Adjustment Systems from the Respons range of valves. This feature allows you to infinitely vary how much air is recirculated, and how much is vented to atmosphere, giving you total control over your blow off sound completely adjustable from silent to ear