Description
GFB Atmosphere Venting BOV w/ Whistling Trumpet FITS Audi/VW – GFBT9401
This is achieved with our whistling trumpet in place of the more common venting slots, so the blow-off sound is higher pitch, and more intense.
The trumpet can be removed for a more classic “whoosh” sound like the other valves in the VTA range, and you can also adjust the spring pre-load to fine-tune when and for how long the valve vents. This is the first time these features and benefits have been available in a bolt on blow off valve for the Euro market!
T9401 is intended for the more popular Audi/VW vehicles that are commonly tuned, such as the Mk7 GTI and R, Audi S3 and RS3 (basically most of the MQB-based models).
