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GFB VTA T9480 VW Audi


SKU T948x Category:


The T9480 VTA is a performance blow-off valve solution for late-model VW & Audi vehicles


If You Want Sound With Your Performance (Or Performance With Your Sound!), GFB’s T9480 VTA Delivers!


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.


With its low-profile integrated solenoid and compact design, installing the T9480 is a breeze. Just swap out your factory diverter valve with the VTA, and you’re good to go!


Key features and benefits:

  • Blow off sound AND better performance
  • Reliable boost holding
  • Sharper throttle response, faster boost recovery
  • Low-profile integrated solenoid for seamless installation
  • Australian-made, backed by a lifetime warranty


T9480 is a direct bolt-on for Audi, VW, Seat and Skoda vehicles that have a Continental-branded diverter valve.


Why Choose A VTA Over A “BOV Spacer”?

Whilst “BOV spacers” might offer a cheap way to get a blow-off sound, they fail to tackle the fundamental performance and reliability issues associated with the OEM diverter valve – all they do is redirect the vented air.


The VTA offers more than just sound. By replacing the OEM diverter valve you also get enhanced performance and reliability.


Reliable Boost Holding

Despite some improvements in reliability by the latest generation of OEM diverter valves, the performance trade-offs continue to grow. By re-locating the diverter valve to the intercooler piping (as seen on the Mk8 Golf R), vehicle manufacturers reduce the risk of heat-related failures. However, boost leakage is significantly greater due to the plastic OEM diverter valve piston failing to seal on an uneven plastic seat.


The VTA effectively addresses this issue by incorporating an integral piston seat machined into its body, ensuring a reliable seal even on irregular plastic OEM seats.


Sharper Throttle Response, Faster Boost Recovery

OEM electronic diverter valves are binary in operation – they’re either open or shut. Your throttle, however, isn’t. When you make small throttle adjustments, the binary operation of the factory diverter results in abrupt changes in power delivery, which is the very definition of poor throttle response.


GFB’s patented “pilot actuation” system allows the VTA’s piston to open and close progressively, thereby smoothing the power delivery during throttle modulation, and ultimately improving throttle response.


Unrivalled Longevity, Backed By Our Lifetime Warranty

The combination of precision manufacturing, attention to detail, and robust materials means the VTA will last a lifetime. So does the warranty!


About this range

VTA Performance Blow-Off Valve Solution

US Patent Number 10077709

Chinese Utility Patent Nos:  CN206054094U & 206129406

PCT Patents Pending

The VTA is a performance blow-off valve solution for Audi, VW, Skoda and SEAT vehicles with an electronic factory diverter valve.

If you want sound with your performance (or performance with your sound!), GFB’s VTA delivers just that! By combining the proven performance benefits of our ground-breaking DV+ with atmosphere venting, the VTA delivers an aggressive blow-off sound, improved throttle response and boost recovery, as well as superior boost holding and reliability in extreme conditions.

The VTA shares the successful DV+ design philosophy:

“Keep what works, replace what doesn’t”

This means we retain ECU control and the solenoid from the factory diverter to ensure the fastest possible response time, without the added and unnecessary cost of replacing the solenoid like some brands do.

The weak part of the factory diverter has always been the plastic valve mechanism – this is the part we replace. The VTA features CNC machined billet components that last a lifetime, and we also change the valve operation method for better performance. The factory diverter valve can only operate in two states – open, or closed. When it opens fully at low boost, or during a partial throttle lift mid-corner, it causes increased lag and a noticeably non-linear boost transition.

GFB pioneered the use of “pilot operation” in the DV+, which works by re-purposing the factory solenoid to control the pressure behind the piston rather than the piston itself. This allows the solenoid stroke to be much shorter, speeding up the response time and increasing the actuation force. More importantly, it allows the piston to open and close progressively in response to the amount of boost pressure present, which smooths boost transitions and reduces the lag caused by the factory diverter valve.

It is this design philosophy that makes the VTA not only the best performing blow off valve solution, but also the best value on the market.

Key features:

  • TMS Technology for faster boost recovery on gearshift and during throttle modulation
  • Improved boost holding ability
  • Atmosphere venting for blow-off sound
  • Retains ECU control
  • Simple, direct bolt-on kits include everything you need to install
  • Manufactured in Australia in accordance with ISO 9001

Vehicle Applications

VTA T9480 Suitable for late-model VW and Audi also suits: