These are the individual springs sold in our Forge FMDVTUN kit. Please select the colour you require using the options above.

Valve Spring color coding:

• Green - 5-15 PSI
• Yellow - 15-23 PSI
• Blue - 23-30 PSI
• Red - 30 + PSI

Note: The quoted spring pressure (PSI) relates to the un-assisted clamping force of the spring and should NOT be taken as an equivalent to boost pressure when determining suitability. Once a valve is fitted to a car it is subjected to various pressures that act upon the diaphragm or piston to aid its respective ability to seal or hold boost. An example of this, would be when using a FMCL007P valve on a 1.8T engine as found in the TT 225hp. The boost pressure on a "chipped" car can peak at 26psi. The recommended spring would be the Green or Yellow.

The outside diameter is 35mm, and the height under no compression is 39mm.

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 license plate or the last 7 digits of your VIN. Simply enter your car details prior to checkout.

FMDVSU110

Manufactured by

Forge