GFB T9451 Diverter Valve VAG 2.0FSI and TSI

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

If you want sound with performance – or performance with sound – the GFB VTA delivers both. Combining the proven performance advantages of the revolutionary DV+ with atmosphere venting, the VTA provides:

• aggressive blow-off sound
• improved throttle response
• faster boost recovery
• better pressure holding
• higher reliability under extreme conditions

"Keep what works, replace what doesn't"

The VTA follows the successful philosophy of the DV+: it retains the ECU control and the factory solenoid to ensure the fastest possible response, without the unnecessary expense of replacing the solenoid, as some other brands do.

The weak part of the factory diverter valve has always been the plastic valve mechanism – and that's precisely what GFB replaces.

The VTA uses:

• CNC machined billet components
• an entirely new valve operating principle
• durable and reliable construction

Why does it work better than the factory valve?

The factory diverter valve has only two states:

• open
• closed

When it opens completely at low boost or when partially releasing the throttle in a corner, it leads to:

• more lag
• uneven boost behavior
• less smooth transition

GFB pioneered the use of pilot operation in the DV+, and the same technology underpins the VTA.

It works like this:

• the factory solenoid does not directly control the piston
• instead, it controls the pressure behind the piston

This allows for:

• shorter solenoid travel
• faster response
• greater actuation force
• progressive opening and closing according to actual boost pressure

The result is:

• smoother boost transition
• less lag
• better behavior at partial throttle
• significantly better efficiency compared to the OEM valve

Key advantages:

• Aggressive atmospheric blow-off sound
• Retains factory solenoid and ECU control
• CNC billet construction
• Faster valve response
• Better throttle response
• Faster boost recovery
• Better pressure holding
• Higher reliability than the factory valve
• Excellent price/performance ratio

GFB VTA is not just a blow-off valve for sound – it is one of the most effective and smartest solutions on the market for enthusiasts who want real improvement in response, boost, and reliability, plus a sound that is heard as it should be.