AMTuned will be closed 11/4 - 11/8 for SEMA. Orders will ship week of 11/11.



AMTuned HD Valve Spring Package for B6 / B7 Audi S4 4.2

Regular price $929.95

Intake single spring: seat pressure 65/lbs

Exhaust single spring: seat pressure 75/lbs

Titanium retainers

To be used with factory style triple groove valves and keepers