This kit contains a range of springs suitable for tuning either the Forge FMDVFSIT, FMDVFSITVR, FMDVVXR valves. This is not suitable to be used on actuators

This kit contains a range of springs suitable for tuning many Forge Motorsport products. This kit can also be used in combination with our FMDVTUN spring kit for the tuning of our twin piston atmospheric blow off valves. Four springs are included within the kit.

Valve Spring Colour Coding: The weakest spring is GREEN, followed by YELLOW, BLUE, and RED which is the strongest. Depepending on the supplied original fitment, this represents an increase of 25%, 50%, 75%, and 100% respectively.

Valve Spring color coding: Green - 5-15 PSI, Yellow - 15-23 PSI, Blue - 23-30 PSI, Red - 30 + PSI.

The above should only be considered as a guideline*

Note: Serious or fatal damage may occur to the engine and associated components if this product is incorrectly matched to the individual engine requirements. Forge Motorsport nor any of it’s Authorised Distributors can assume any responsibility for any adverse effects resulting from the installation of this product. 

*Please Note - The colours of the springs illustrated may differ to what you receive. All spring kits are brand new but are not sprayed. Colour is used as an identifier*

Universal

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number (UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout.

Forge-FMTVTUN

Manufactured by

Forge