BC Brian Crower Head Gasket for 4G63 Evo 4-8 (BC8211) GSC 7" diagonal vs 5" diagonal

7" diagonal vs 5" diagonal

ECU tuning is required to ensure the MAF sensor reads properly

• 2 units as a set

Vehicle Fitment: Exhaust: Matching Tail Pipe: Optional Rear Diffuser: 911 997

• Function over a wide temperature range

BC Brian Crower Head Gasket for 4G63 Evo 4-8 (BC8211) GSC 7" diagonal vs 5" diagonalBC Brian Crower 0. 8mm thick head gaskets for the 4G63 Evo 4 8 with 86mm bore. BC gaskets, manufactured in Japan, provide exceptional sealing even under extreme boost pressures. Made from die cut layers of stainless steel, they offer superior consistency compared to other leading gaskets. Unlike inferior brands, which have high profile beads prone to fatigue and leakage, BC gaskets feature a 0. 2 micron layer of Nitrile rubber on pre coated stainless