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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

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