Z900/1000 APE VSP550 Valve Springs - For Cams with High Lift Up to 0.560 APE Performance Valve Springs APE valve Springs for the

APE valve Springs for the GSX1000 K1 to K8 models

but can be used with some street style exhaust systems that go under the pan

All kits come with wiring harness and instruction manual

Like all Dynatek high performance coils the DCOP offers increased spark energy

Z900/1000 APE VSP550 Valve Springs - For Cams with High Lift Up to 0.560 APE Performance Valve Springs APE valve Springs for theVSP550 Springs are designed to be used with Hi Lift Cams, typically Prostock or top gas with up to 0. 560" lift. World famous APE valve Springs are made from premiun chrome silicone wire for consistent pressure and excellent fatigue life. Racers as well as street riders have come to depend on APE Springs for winning performance. For use with any high lift cam and or agressive camshaft Profile.