Atmosphere Venting BOV w/whistling trumpet [T9401]

VTA T9401 expands the blow off sound options for your VW or Audi!

WORLDWIDE PCT PATENTS PENDING

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

Choose Your Sound…

With the removable extended trumpet, you can configure the T9401 to give you either a classic “whoosh”, or the loudest, most unique whistle sound you’ve ever heard on a Euro vehicle!

Customize the sound!

The T9401 also features adjustable spring pre-load so you can fine tune when it blows off, and for how long. A softer pre-load allows the valve to blow off for longer and at lower engine loads. If you prefer to hear it only at higher engine loads you can use a firmer pre-load.

Low-Profile, Easy Installation

Using our integrated solenoid design stacked in an “over/under” configuration, the super-low profile allows clean and simple fitment (even if your aftermarket intake is using up all the space!)

Is This the Right Valve for Me?

If you haven’t already checked that your vehicle is on the fitment list, do that first. (SELECT BY CAR ABOVE)

VTA T9401 Blow Off Valve Sound with DV+ Performance! also suits:
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