2019 Audi A4 Blow Off Valves

Upgrade the factory diverter valve on select Audi and Volkswagen 2.0T VAG applications with the Go Fast Bits DV+ T9351 diverter valve. Designed as a direct replacement upgrade, the GFB DV+ keeps the factory solenoid and ECU control while replacing the weaker factory valve components with stronger me...

Like all valves in the DV+ family, the T9381 offers significant benefits over factory-fitted electronic diverter valves – sharper throttle response, faster boost recovery on gearshift or brief throttle lifts, improved boost holding, and unrivalled longevity. Where the T9381 differs from the T9351 ...

Like the DV+ though, it replaces the weak factory valve internals to ensure strength and reliability, especially in high boost applications. Other versions of the VTA are designed for use on cars that do not have any kind of factory-fitted diverter valve....

By combining atmosphere venting with the proven performance benefits of our ground-breaking DV+, the VTA delivers an aggressive blow-off sound, improved throttle response, as well as superior boost holding and reliability. The integrated low-profile solenoid ensures a direct fit installation. With i...