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The T9488 VTA is a performance blow-off valve solution for Mercedes vehicles
If You Want Sound With Your Performance (Or Performance With Your Sound!), GFB’s T9488 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 T9488 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
T9488 is a direct bolt-on for most Mercedes turbo petrol vehicles. Twin-turbo engines typically require two valves.
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 locating the diverter valve on the intercooler piping rather than the turbo compressor cover, the risk of heat-related failures is reduced. 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 “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!
VTA T9488 Suitable for Mercedes models also suits:
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We understand that cars are much more than a simple means of transportation. We consider cars to be a way of life, the roaring embodiment of our lifestyle. Cars help us show who we are and it ties us together with friends. We take what the car manufacturers gave us and modify it to make it better, faster, more unique. Some of us are fresh out of school, others of us are family men but all of us are car people – just like you.
