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
2015-2019	Dodge	Challenger	SRT Hellcat
2015-2019	Dodge	Charger	SRT Hellcat
2016-2018	Ford	Focus	RS
2020-2023	Ford	Mustang	EcoBoost
2020-2023	Ford	Mustang	EcoBoost Premium