BC Brian Crower Head Gasket for 4G63 Evo 4-8 (BC8211) Spec-R 040" Restrictor

040" Restrictor

This regulator is designed with a unique highly versatile mounting system

Replacement for OEM part number 11720-JF00A (11720JF00A)

2015-2023 Subaru WRX

BC Brian Crower Head Gasket for 4G63 Evo 4-8 (BC8211) Spec-R 040" RestrictorBC 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