We recommend the option Blue Spring + 6.3mm Shim (-10 PSI) for most N54 application, unless you have measured your vacuum pressure reading and are producing much more or much less than than 10psi, this should be taken at normal operating temperature whilst the engine is idling with a pressure gauge for accuracy. 

If you would like to purchase all three springs, please see the Forge Universal Blow Off Valve Spring & Shim Kit.

If you wish to purchase an extra spring individually, please see ?Forge Universal Blow Off Valve Individual Spring. 

• 1x FMDVRAYV2
• 1x Clamp-on Boss 
• 1x V-Band Clamp
• 1x Forge Motorsport Key Ring

*The picture above illustrates the valve assembly, please note that only one shim can be used and how the shim fits between the piston and the spring*

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.

FMDVRAYV2

Manufactured by

Forge

Warranty

Forge Limited Lifetime Warranty (Non-Transferable)