The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.

This Part Fits:

Year	Make	Model	Submodel
2005-2010	Chrysler	300	C SRT8
2008-2010	Dodge	Challenger	SRT8
2006-2010	Dodge	Charger	SRT8
2006-2008	Dodge	Magnum	SRT8
2006-2010	Jeep	Grand Cherokee	SRT8