Brand: Forge Motorsport

Dump valve for the 1.2 and 1.4 TSI engine 2015-2018

Product code: FMDV1

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Product Description

Forge Motorsport have designed the dump valve  / blow off valve for the 2015-on 1.2 TSI engine codes CJZA, CJZC, CJZD, CYVB .

This valve will fit on all the following applications Skoda Fabia, Skoda Octavia, VW Golf, VW Polo, Audi A1, Audi A3, Seat Ibiza and Seat Leon.

The   1.2 and 1.4 TSI does not have  a dump valve as standard from the factory, so  Forge have set the standard again by designing a  blow off valve solution that not only allows you to have the traditional dump valve noise between gear changes and when letting off the gas pedal. It won’t bring on any check engine lights  ( EML )  and the car will  perform flawlessly .

  • The Forge valve removes the OEM plastic pipe from turbo to manifold with a silicon hose (available in a choice of colors), and is provided with all the necessary product to make a quick and easy install with the fitting instructions provided.
  • Beware cheap copy  valves and “ Forgeries “  The unique design of the Forge valve will not cause any engine idle or running issues
  • All Forge silicon hoses in this kit come with a Flurosilicon  liner.
  • This liner means that the hoses are suitable for use with modern long-life coolants, Organic Acid Technology coolants (O.A.T.) and oil mist.
  • The use of a Flurosilicone liner ensures that Forge silicone hoses are the best, longest lasting, and preferred choice of the discerning car enthusiasts.
  • The construction of the hoses has been engineered to exceed that of the OEM fitments, and will enhance any engine bay both technically and aesthetically

This Forge valve set up is designed to fit with the standard intake.

We cannot guarantee it will fit with all aftermarket intakes.

DOES NOT FIT a 2019 VW Jetta!

This product design has been registered.  Registration Number:  5004511


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.

Product Reviews

Product Reviews

from on Aug 18th 2017
Lucky for the people that fit this on their 1.4 tsi and had no problems. I installed this on my 1.4 tsi jetta '17 and i received a check engine light. After the install, i drove around lightly for about 20 minutes and the problem occured after. Might have been caused by the soft spring as it would leak boost at 2nd gear 3k rpm before shifting. Hopefully my CEL will be cleared after the blue spring install.
from on Jul 21st 2017
Fit perfectly on my 2017 1.4l tsi Jetta and sounds awesome!
from on Jul 11th 2016
This item also fits 1.4 TSI new engines.

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Compatible Vehicles



Warranty Infomation

All Forge Motorsport products come with a limited lifetime warranty. 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 +44(0)1452 380999 or email

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.



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