Cabezales colector de escape de hierro fundido intercambiables LS Chevrolet LS1LS2LS3 4,8 L 5,3 L 6,0 L
Their contoured design aims the exhaust directly at the exit port for improved flow. 2.25" flanges. Exhaust Pipe to Manifold Gasket (GM part # 92202326) a total of 2 are needed for basic installation.