GFB Atmosphere Venting BOV with whistling trumpet

The VTA T9401 is a premium, high-performance blow-off valve designed specifically for VW and Audi vehicles equipped with an electronic factory diverter valve. This innovative solution expands your sound options and provides unparalleled customization.

Choose Your Sound: The T9401 comes with a removable extended trumpet, allowing you to easily configure the sound to your preference. Install the trumpet for the loudest, most unique whistle sound you've ever heard on a Euro vehicle. Or, remove it for a classic, clean "whoosh" sound. This versatility gives you the power to change your car's character whenever you want.

Customize Your Performance: Beyond sound, the T9401 features an adjustable spring pre-load, giving you precise control over when and how the valve blows off. A softer pre-load will activate the valve at lower engine loads for a longer duration, while a firmer setting will reserve the sound for high-load conditions. This allows you to fine-tune the valve's response to match your driving style.

Engineered for Easy Installation: The T9401 features a patented, super-low-profile design with an integrated "over/under" solenoid. This compact configuration ensures a clean and simple fitment, even in tight engine bays with aftermarket intakes.

Protected by Patents: The VTA T9401 is a globally recognized and patented design, protected by Worldwide PCT patents pending and China Utility Model Patents CN206054094U & 206129406. You can be confident that you are installing a truly unique and innovative product.

Upgrade your driving experience with the VTA T9401 and get ready to turn heads with a sound that is uniquely yours.

Suitable for:

• VW Golf GTI Mk8 (Australia only)
• AUDI RS3 8P (2011-2012)
• VW Polo GTI (2.0TSI 2017-on)
• AUDI RS3 8V Facelift (2017-on)
• VW Golf Alltrack 1.8TSI 2014-on
• AUDI TTS 8S 2.0TFSI 2015-2018
• AUDI TTRS 8S 2.5 TFSI 16-on
• AUDI TT 8S 2.0TFSI 2014-2018
• AUDI 8V (2013-2020) 1.8/2.0TFSI
• AUDI 8V (2013-2020) 1.8/2.0TFSI
• AUDI S3 8V (2013-2020) 2.0TFSI
• AUDI S3 8V (2013-2020) 2.0TFSI
• AUDI 8V (2013-2020) 1.8/2.0TFSI
• AUDI S3 8V (2013-2020) 2.0TFSI
• VW Golf R Mk7/7.5 2.0TSI 2013-2020
• VW Golf R Mk7/7.5 2.0TSI 2013-2020
• VW Golf GTI Mk7/7.5 2.0TSI 2014-2020
• VW Golf GTI Mk7/7.5 2.0TSI 2014-2020
• AUDI RS3 8V (2015-2017)
• AUDI S1 8X (2014-2018) 2.0TFSI
• AUDI A1 1.8TFSI 2015-on
• VW Polo GTI (1.8TSI 2015-2017)
• AUDI TTS 8J 2.0 TFSI 06-14
• VW Golf GTI Mk7/7.5 2.0TSI 2014-2020
• AUDI TTRS 8J 2.5 TFSI 09-14
• VW Scirocco R Mk3 2.0t FSI (EA113) 06-13
• VW Golf R Mk6 2.0TSI 08-13