Fine tune your diverter or blow off valve for optimal performance. If you are finding that the valve is dumping more than required or you are loosing boost pressure it is normally an indication that a stronger spring is required. This kit includes four springs of assorted strengths which match with different turbo pressure ranges : Green (5-15 PSI) - Yellow (15-23 PSI) - Blue (23-30 PSI) - Red (30+ PSI)

This kit is compatible with the following dump valves :

FMDVK04SA, FMDVK04DA, FMDVCS14A, FMDVF14A, FMDVK04S, FMDVK04D, FMDVCS14R, FMDVF14R, FM207V, FMDVR56A, FMDVR56R, FMDVR60A, FMDVR60R, FMDVM2LA, FMDVM2LR, FMDVST180A, FMDVST180R, FMDVDS3A, FMDVDS3R, FMDV2A, FMDVA45A, FMDVN20A, FMDVN20R, FMDVF20A, FMDVF20R, FMDVF22A, FMDVF22R, FMDVATSI, FMDVRTSI, FMFSITAT, FMFSITVR, FMDVA1TSI, FMDVMK7A, FMDVMK7R 

- Select the full spring kit or single one -

Color coding corresponding to spring strength

Green : 25% strengther than original

Yellow : 50% strengther than original

Blue : 75% strengther than original

Red : 100% strengther than original

This kit can also be used in combination with FMDVTUN spring kit for the tuning of twin piston atmospheric blow off valves

Made in UK