COMPATIBLE: 

2001 - 2004 6.6L LB7 Duramax

2004.5 - 2005 6.6L LLY Duramax

2006 - 2007 6.6L LBZ Duramax

2007.5 - 2010 6.6L LMM Duramax

2011 - 2016 6.6L LML Duramax

This high-performance Racing Exhaust Manifold is engineered for Duramax owners seeking improved exhaust flow, quicker turbo spool, and better overall engine efficiency. Built from heavy-duty cast iron and designed to withstand extreme heat and high-boost applications, it serves as a robust upgrade over restrictive factory manifolds. Ideal for performance builds, turbo upgrades, and EGR-deleted race setups. 

High-Flow Exhaust Design Optimized internal runners reduce exhaust backpressure and allow smoother, faster evacuation of gases from each cylinder, improving turbo response and overall engine breathing. Enhanced Turbo Spool & Efficiency By channeling exhaust gases more efficiently to the turbine inlet, this manifold helps the turbocharger reach boost sooner and maintain more stable pressure under load. Durable Cast-Iron Construction Constructed from heat-resistant, heavy-duty cast iron capable of long-term operation under high temperatures and high-boost performance conditions. Supports High-Performance Builds Ideal for trucks running upgraded turbos, high-flow downpipes, open EGR-delete systems, or aftermarket tuning that increases exhaust volume and heat load. Reduced Thermal Stress A more efficient flow pathway helps decrease exhaust gas temperature (EGT) buildup, reducing stress on the turbocharger and extending component life. Race-Use Compatibility Designed specifically for performance and race applications where maximum flow is critical.