Enjoy the peace of mind that every HPA built twin-turbo owner does and protect yourself against engine knock.
_x000D_For high boost/HP applications, HPAs kit reduces your compression to 7:1, allowing your tuner to optimize ignition maps for varying fuel quality and octane grades.
_x000D_Laser cut and precision ground, our steel head plates ensure perfect fitment. The lengthened timing chain is held under tension with our upgraded piston assembly, where HPA has integrated a clean oil source pick up for your turbo or supercharger hardware.
_x000D_A set of OEM head gaskets together with head bolts provide everything you need to complete your long block build.
_x000D_Included with the Compression Reduction Kit:
_x000D_- _x000D_
- Steel Head Spacer _x000D_
- OEM Head Gaskets (2) _x000D_
- OEM Head Bolts _x000D_
- Oil Feed Pick Up Fitting / Line _x000D_
- Tensioner Piston _x000D_
- Lengthened OEM Timing Chain _x000D_
- PDP tag:
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