Specific Product Information
Relevant tech information
- Uses a single venting outlet with whistling trumpet for a unique blow-off sound
- Trumpet is removable to allow the user to configure the valve for whistling or "whoosh" sound
- Spring pre-load adjustment to change sensitivity of blow off
- Capable of handling upwards of 50psi
- Direct-fit replacement with GFB’s TMS benefits
- Unrivalled longevity
Features of VTA:
- Utilises pilot-actuated operation, allowing for increased throttle response and better drivability
- Replaces weak plastic components with metal components which solve boost leaks and improve boost holding
- VTA progressively opens in response to boost pressure – only opening as much as is required
- Features an inbuilt solenoid, absolving the need to disassemble your OE diverter valve solenoid
Use cases:
Choose this valve over a T9481 or T9451 when you want the loudest and most unique blow off sound possible.
Fitment - T9401 has a low profile, similar to the factory diverter. However, the solenoid annd trumpet attach to the side of the valve which does limit fitment of the T9401 to some Audi/VW models. The Vehicle Application list below shows all current known Audi/VW fitments, although we are adding more fitments as we test.
