Description
Product Description
The kit includes all the necessary hardware and step by step installation instructions for the average car enthusiast to fit at home with average garage tools in just a couple of hours. Our valve kit allows the fitment of our fast response blow off valve preventing turbo surge and prolonging the life of your engine’s turbocharger.



As the engine does not have a diverter valve fitted as standard, Forge Motorsport have developed a twin piston dump valve that not only gives you an incredibly loud sound when lifting off the throttle, but it 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 while also taking the strain away from the turbocharger impeller. Without taking this stress away from your turbo it can lead to premature turbo failure especially on re mapped engines and modified vehicles.
Although the various 1.5 TSI engines share many of the same components the later engines have a slightly different configuration, please remove your engine cover to establish what kit is needed.
PLEASE NOTE TO DETERMINE WHICH IS THE CORRECT DUMPVALVE KIT FOR YOUR VEHICLE PLEASE STUDY THE PICTURES BELOW. IF YOU HAVE ANY QUESTIONS PLEASE CONTACT US.
For the engine below, this valve (FMDV39) is correct

For the engine below, this is not the correct valve. You will need FMDV22

The vacuum FMBGFK22 adaptor is also supplied with the FMDV39 kit and is used to operate the dump valve. This adaptor can also be utilized as a fitting kit for an additional boost gauge with a simple t-piece.



- Due to the exposed position of the OEM boost pipe and the nature of an engines heat cycle, the plastic 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), and everything else you need to install the valve is included in the kit together with full instructions.
- Anodised CNC machined billet couplers and components along with a tuneable CNC machined twin piston Forge Motorsport valve.
- Custom colours are available but will incur a 50% none refundable deposit and a lead time of 8-10 weeks.
- Unlike other valves on the market the Forge valve will not bring on any check engine lights. (EML)
- The Forge silicone hose in this kit has been designed to include a quality inner liner of modified silicone known as Fluorosilicone. This ensures the colour of the silicon hose stays bright and vibrant and unlike our competitors will not deteriorate over time.
- This means Forge Motorsport 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.
- Lifetime warranty.
We cannot guarantee that this product will fit with all aftermarket intakes.
In the Box:
1x Atmospheric Dump Valve
1x Boost Tap / Take Off
Throttle Body and Turbo Couplers
1x Silicone Hose (Red, Blue or Black)
3x Hose Clamps
All fixings and fittings
1x Roll of Vacuum Tubing
2 X Norma adaptors

Complimentary Products
Check your vehicle compatibility: Click here
Please Note: In line with our policy to constantly review, revise, and improve our product range, the appearance of the product you receive may differ from the one advertised.
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Compatible Vehicles
Instructions
Warranty
10 Year Warranty Information
The majority of Forge Motorsport products come with a limited 10 Year Warranty (brakes pads excluded). All warranty claims must be accompanied by the original proof of purchase to enable us to help you. Failure to supply this proof will result in your claim or enquiry being denied.
For further information, please call our customer service team on +49(0)3222/1097-308 or email info@forgemotorsport.eu.
Do not use aggressive (acidic) car cleaning products, particularly traffic film remover solutions or shampoos to clean your intercooler, radiator, or oil cooler. The use of these products can damage Forge Motorsport cooling systems and invalidate your warranty. These are often found at car washes. A light, warm, soapy solution (free of harsh acidic cleaning compounds) should be used to clean you cooler and thoroughly rinsed away. We recommend that you should inspect your product on a regular basis for bent and/or crushed fins. Any bent fins should be carefully straightened to allow ambient air to pass through the core face. At the time of installing your Forge radiator, an approved coolant must be used and added to the coolant system. Be sure you never mix coolant and always use distilled water.
This warranty does not apply to any defect in the goods arising from fair wear and tear, wilful damage, accident, negligence by you or any third party, use otherwise than as recommended by the supplier, failure to follow the supplier’s instructions, or any alteration or repair carried out without the supplier’s approval.
Shipping
European Shipping
We ship to selected EU countries as displayed during the checkout process.
Delivery service charges will vary depending on the quantity of product ordered, the related parcel size, and your destination.
Our shipping methods ensure safe and timely delivery of your new Forge products. For further information on cost and delivery times, please contact us if you require any more information via our contact page.
We reserve the right to change the delivery service and our shipping providers at any time.
Once a product has left our warehouse and is in the possession of the shipping company, any claims must be made directly with that shipper, however we may be able to assist in some cases.
FAQ's and other info can be found here.
Manufacturer & EU Contact Details
Manufacturer
Company Name: Forge Motorsport
Address: Unit 1A, Ashville Trading Estate, Gloucester, GL2 5EU, United Kingdom
E-Mail: info@forgemotorsport.co.uk
Phone: +44 1452 380999
EU Responsible Person
Company Name: Milltek Sport GmbH
Address: Gottlieb-Daimler-Str. 1-3, 53520 Meuspath
E-Mail: info@millteksport.de
Phone: +49 (0) 3222 1097308
Expert Answers
what is the stock spring colour that comes with the dump valve?
It is assembled with a green spring , an additional yellow is also provided.
Merhaba seat ateca 1.5 eco tsi fr FACELIFT ARACA UYUMLUMUDUR. UYUMLU ISE TURKIYEYE KARGONUZ VARMIDIR?
Evet, 2022 ve sonrası bir model olması koşuluyla FMDV39 uyumludur; Aksi takdirde ne yazık ki doğrudan Türkiye'ye gönderim yapmıyoruz ancak kit İstanbul'daki Powershop'tan satın alınabilir.
Yes the FMDV39 is compatible, provided this is a 2022 and onwards model; otherwise we unfortunately do not ship direct to Turkey, but the kit can be bought from Powershop in Istanbul.
Hi, will this fit a 2023 Seat Leon Fr 1.5tsi Mk4? The engine looks the same but my steering wheel is on the left side, I just wanted to check if it works for my car.
Hello
Yes this product is compatible with your vehicle.
will this fit a cupra formentor 1.5 tsi (evo) 2023 model?
hello , yes this is compatible
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