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Large Bore-HD 4" 409 Stainless Steel Cat-Back Exhaust System | #for

Large Bore-HD 4" 409 Stainless Steel Cat-Back Exhaust System

Large Bore-HD 4" 409 Stainless Steel Cat-Back Exhaust System

Most designs of the time therefore included secondary air injection, 4 inch exhaust hanger clamp which injected air into the 22re exhaust header stream.