Blow Off Valve for VW, Audi, Seat & Skoda 1.5 TSI (up to 2022)


Code: FMDV22

If you have a 2022 onwards model, you can find the appropriate valve here

As the engine does not have a diverter valve fitted as standard, Forge have developed a twin piston dump valve that not only gives you an incredibly loud sound when lifting off the throttle, but also increases the throttle response during gear changes by reducing turbo lag. It has been designed to help the turbocharger maintain its rotational speed ready for when you accelerate, whilst also taking the strain away from the impeller. Without removing this stress from your turbo, it could cause premature failure. Especially on modified vehicles.

This valve kit allows the fitment of our fast response blow off valve preventing turbo surge and prolonging the life of your engine’s turbochargerThe kit includes all of the necessary hardware and step by step installation instructions for any car enthusiast with appropriate garage tools to fit at home, in just a couple of hours! 

Due to the exposed position of the OEM boost pipe and the nature of heat cycle, the plastic that the OEM pipe is made from can deteriorate over time, becoming brittle and susceptible to boost leaks. This kit totally replaces this plastic pipe from turbo to manifold with a silicone hose (available in a choice of colours!).

The Forge Motorsport FMDV22 Blow off valve kit fits all engine variants, please identify from the images below whether you require the extra breather adapter for you application.

If your engine bay is the same as shown above then you will require the additional breather adapter so please make sure to select 'Yes' on the Breather adapter dropdown option.

If your engine bay is the same as shown above you do not require the additional breather adapter. Please make sure to select 'No' on the dropdown option.


  • CNC machined billet couplers and components
  • CNC machined twin piston Forge valve
  • Three hose options: red, blue, or black (Custom available but will incur a 50% non-refundable deposit and a lead time of 8-10 weeks)
  • Forge valve will not bring on any check engine lights (EML) 
  • The hose has a quality inner lining of modified silicone known as 'Fluorosilicone'. This means that the hose will stay bright and vibrant, and will not deteriorate over time. Forge Motorsport lined hoses are suitable to be used with modern long-life coolants, Organic Acid Technology coolants (O.A.T.) and oil mist. The construction of the hose has been engineered to exceed that of the OEM fitments, the Forge Motorsport hose will enhance any engine bay both technically and aesthetically.
  • The hose from this kit replaces OEM part numbers 05E.145.673.E and 05E.145.674.E
  • We cannot guarantee that this product will fit with all aftermarket intakes.
  • Lifetime warranty
  • We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner







In the Box:
1 x Atmospheric Dump Valve
1 x Boost Tap/Take Off
 Throttle Body and Turbo Couplers
1 x Silicone Hose (Red, Blue or Black)
3 x Hose Clamps
All fixings and fittings
1 x Roll of Vacuum Tubing
1 x Forge Sticker



  • Audi
    • A1 > A1 (GB) 2018- > 35 TFSI (1.5 TSI)
    • A3 > 35 TFSI (1.5 TSI)
    • Q2 > 35 TFSI (1.5 TSI)
    • Q3 > 35 TFSI (1.5 TSI)
  • Seat
    • Arona > 1.5 TSI
    • Ateca > 1.5 TSI
    • Ibiza > Mk5 (KJ) 2017 - late 2021 > 1.5 TSI
    • Leon > Mk3 2012-2020 > 1.5 TSI 130/150 BHP 2018-
    • Tarraco > 1.5 TSI
  • Skoda
    • Karoq > 1.5 TSI
    • Kodiaq > 1.5 TSI
    • Octavia > 1.5 TSI
    • Scala > 1.5 TSI
    • Superb > 1.5 TSI
  • Volkswagen
    • Golf > MK7 > 1.5 TSI
    • Golf > MK7.5 > 1.5 TSI
    • Golf > MK8 > 1.5 TSI
    • Passat > 1.5 TSI
    • T-Cross > T-Cross 1.5 TSI
    • T-Roc > 1.5TSI
    • Tiguan > 1.5 TSI
    • Touran > 1.5 TSI