HKS Metal Head Gasket Set, R35 GT-R

To improve the performance of R35 GT-R using the factory Head gasket, the factory bore sealing proof stress restricts the improvement.
GT800 Package can release the restriction by replacing the Head gasket with the HKS Head Gasket which enables higher performance.
This HKS Head Gasket includes the Exhaust Manifold Gasket.
Best to use with GT800 Package to upgrade the engine properly.

Included:
• HKS Metal Head Gasket Set, R35 GT-R

Features:
• High engine output parts. Designed to replace the factory Head gasket.
• The bore diameter and thickness are the same as the factory gasket.
• The shape of the exhaust gasket is the same as the factory gasket.
• Improved the bore seal proof stress at high output and high boost by the redesigning the structure without upgrading the Head Bolt. (Bore seal pressure of the contacted surface was improved by 30%)
• In-house test at 900PS confirmed the durability and safety.
• The compression ratio of HKS Head Gasket isε9.0 which is the same as the factory ratio.
• The Exhaust Manifold Gasket uses the 4-layer seal bead design (t=0.8). (The factory is 3-layer design (t=0.6)