Honda GSR Cylinder Heads

Honda GSR Type-R - PR3 P72

5-Axis CNC Porting, SERDI Competition Valve Job, New Bronze Guides. Average 15-20% Gains for N/A Applications. 75-100 HP Gains for Turbo Engines. GSR, Type-R, PR3, P72 heads Only. Multiple CNC Chamber Sizes Available. Send your Casting.

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