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Go Fast Bits TMS Respons Blow Off Valve Kit with optional WHISTLING TRUMPET

$ 307.80 $ 342.00
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*due to high demand this product ships in 5-10 days after ordering 

If cars like yours typically suffer issues such as backfiring and stalling when using a fixed-ratio atmosphere-venting BOV, the Respons can help. By adjusting the venting bias to suit the car you can achieve a blow-off sound without having to put up with the issues. Like all GFB valves, the Respons utilizes GFB's proven TMS Technology to ensure rapid boost recovery on gearshift and optimum throttle response, as well as the ability to withstand boost pressures of 100psi+. Put simply, it can hold more boost than any turbo could produce. 

Features and Benefits

  • Patented Venting Bias Adjustment System-Can be Infinitely Adjusted between Full Recirc (silent) and full atmosphere (loud). Change the venting bias simply by twisting the adjustment ring.


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Customer Reviews

Based on 4 reviews
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Robert Barnett
Amazing Product - LOUD

Paired this with the Whoosh titanium V2 intake on my 2026 Elantra N, and it is an amazing combination. Product is easy to adjust. I did get the BOV with the trumpet. Only thing is that the trumpet did rest on the shroud, but I used a zip tie to pull it back off of it. Super happy with the purchase!

A
Allan Tittermary
Smile ear to ear

Super easy install and holy cow! It sounds freaking amazing. I bought the solenoid bov upgrade, but, the quality on this unit is top notch and the valve works exactly how it should… under load only :) Installed at the same time as the Whoosh v1 intake and inlet… the combination is a game changer

D
Drew R.
SO WORTH IT

Even with the stock solenoid, it works PERFECTLY. You do not need to plug any holes, or close any hoses. Entirely plug and play and easy bolt on. New gasket comes with the valve and bolts, so no need to buy extras.

When you get the trumpet, it is LOUD. It’s so worth it.

J
John Baghdassarian
What an amazing purchase

Wow, all I can say is that it's totally worth it. Sounds amazing! Paired it with the Woosh v2 intake and its amazing