Description
Product Description
This valve kit allows the fitment of a fast response blow off valve on the VAG 1.0 TSI/GTI engine, including the VW UP. This valve has superseded the previous iteration of this valve, FMDV9.



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 is designed to help the turbocharger maintain its rotational speed ready for when you accelerate, as well as prolonging the life of your turbo.



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 silicon 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 hoses in this kit have been designed to include an expensive 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.
- Lifetime warranty.
Please note that the 2021 Engine may have some differences due to the map sensor and turbo charger coupler difference, please study the pictures below, if your map sensor and screw type coupler look like this pictured below, FMDV9 and FMDV18 are not compatible.



In The Box:
1x Atmospheric Dump Valve
1x Boost Tap / Take Off (Including Cork Gasket and Screws)
1x Throttle Body Coupler with Dump Valve Thread
1 x Uprated Spring (To be used when the engine is mapped)
1x Hose Coupler
1x Threaded Blanking Plug
1x Silicone Hose (Red, Blue or Black)
3x Hose Clamps
2x Bolts
1x Roll of Vacuum Tubing
1x Wiring Loom Extension
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
Dump Valve Kit for VAG 1.0 TSI/GTI
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
Does this kit fit 1.0 2018 seat Ibiza tsi fr?
Hello , thank you for your question , Yes this product is suitable.
Will this fit a 2018 Audi a3 30 tfsi (1.0) S Line
yes
Will this fit a Ibiza FR 2023 1.0 TSI?
Hello
This product is NOT compatible with your vehicle.
The product you need is FMDV46.
Also the following products are compatible with your vehicle, FMINDK52 and FMTIA13.
Hope this helps.
Hi, will it fit in my VW Golf 1.0 TSI MK7,5 2017?
Hello
Yes this product is compatible with your vehicle.
Will this fit a Seat ibiza xcellence 1.0L tsi 115bhp 2019?
Hello
Yes this product is compatible with your vehicle.
Hi would this fit a seat Ibiza fr 2020 ??
Hello
Yes this product is compatible with your vehicle.
Regards
Hi, would this fit my 1ltr 2019 (69) Audi a3 s line, It has the same cross over pipe but the air box sits on top of the engine rather than to the side.
Hello
Yes this product is compatible with your vehicle.
Will this fit in my skoda fabia 1.0 tsi 2019 ?
yes
Would the fit a 2018 1L Fabia Monte Carlo?
Hello
Yes this is compatible with your vehicle.
Will this fit mu seat ibiza fr sport 2021
Hello
Your vehicle is on the change over year. Can you please send me a picture of the engine bay please.
Will this fit a 2024 Volkswagen Polo 1.0 TSI?
Hello
This product is NOT compatible with your vehicle.
The product you need is FMDV46.
Would this fit a seat Ibiza 1.0 TSI FR Hatchback 5dr Petrol Manual Euro 6 (s/s) (115 ps)
What year is your vehicle?
Hi i currently have this kit and am wondering if you have a recirculating dump valve available?
Hi Christian,
im afraid we do not offer a recirculating valve for this engine. the reason being is it did not have one as standard.
hi, will this kit fit the new (IV) 2024 SKODA FABIA 1.0 TSI ?
Hello
No this product is not compatible with your vehicle.
The product you will need is FMDV46.
If you go to our website and hit the vehicle search under skoda - fabia - pj 2022- then it will show all the products compatible with your vehicle.
Do you have an alternative for the 2021 models that this doesn't fit ?
Hello,
Thankyou for your message, yes we do please see this link https://www.forgemotorsport.co.uk/VAG_10_TSI_2022_Dump_Valve--product--2728.html
Will this fit fabia mk4 2023?
No, but we are about to launch products for this model; induction kit and turbo elbow by the end of next week and the dump valve will be available from the 6th of June
Hello I have a seat Fr 1.0 TSI 115, will I have to change my spring that’s provided before or after my tune??? Thanks !
no the standard spring will be ok for stage 1
will this dump valve kit fit on a VW 2023 polo 1.0 95hp ??
Yes, the FMDV18 is compatible with the 1.0 TSI 2023 models.
Will this Dump Valve Kit fit on a VW Up! GTI 2022?
Hello
Yes this product is compatible with this vehicle.
Hello is this compatible with a 1.0 TSI late 2022 Seat Ibiza?
Hello
No this product is not compatible with the 2022 onwards vehicles. We do have a new range of products avalible for that platform and the product code to look out for is FMDV46.
We will have and induction kit, turbo adaptor and inlet hose all avalible next month.
Hi is this compatible with a 2020 polo R
Hello yes this is compatible with a 2020 polo 1.0 TSI R Line
I have a seat arona FR 1.0TSI 115ps It has been remapped to 140ps. when installing the FMDV18 kit i replaced the yellow spring with the blue spring. However I am getting a error code p0299 underboost error. I believe this is because the blue spring is too weak, could I be correct? if so is there another spring that I can purchase?
hello , please check all the oem seals are in place and the wiring loom extension is fully connected , this sounds like an installation error as the spring should be suffice.
Hi, would this fit a 2018 audi a3 1.0L sline
Hello
Yes this is the correct product for your vehicle.
Salve ,ho acquistato il prodotto. Ma in alcune foto da vedere che ci sono due fori e in altre foto no (uno per la pop off e un altro per il tubicino) Quindi non riesco a capire se va bene per la mia auto oppure no.
Hola, por favor envíeme una foto de su compartimiento del motor para que pueda ayudarlo.
Please send me a picture of your engine bay and I will see if this product is compatible.
Hello so this will fit my VW polo 1.0L tsi 2019 plate
Hello
Yes this product is compatible with your vehicle.
How would i upgrade spring for remapped car? Thanks
The top of the valve will unscrew and spring open so be carful DO NOT REMOVE THE PISTION, once open remove the yellow spring and replace it with the blue spring.
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