A&J manufacture
HIGH FLOW CAST Exhaust Manifold For 17-24 Chevy GMC 6.6L Duramax Diesel L5P
HIGH FLOW CAST Exhaust Manifold For 17-24 Chevy GMC 6.6L Duramax Diesel L5P
Improve the performance of your 17-24 Chevy GMC 6.6L Duramax Diesel L5P with our HIGH FLOW CAST Exhaust Manifold. Experience increased power and fuel economy while maintaining reliability. Designed for maximum flow and lower EGTs, with built-in bosses for optional EGT gauge sensor.
