STK Performance - Dual Valve Spring Kit VW 8v

Dual Valve Spring Kit VW 8vKit consists of : 8 x Inner & Outer Springs , 8 x Retainers 7mm / 4 x Inlet Valves 40mm / 4 x Exhaust Valves 33mm ( 3 groove )Spring Pressure @ 34mm = 90lbs / Full Lift = 200lbs;