Product description
Maximum Durability: BD Upgraded Duramax Exhaust Manifolds
Upgrade your 2001-2016 6.6L Duramax with a manifold set designed to outperform and outlast factory hardware. Whether you're looking to fix a cracked manifold or seeking a performance edge, BD Diesel delivers a robust, high-flow solution engineered for the long haul.
Engineered for Extreme Strength
Factory manifolds are prone to warping and cracking under the high exhaust gas temperatures (EGTs) common in diesel engines. BD has reinforced these critical components:
65% Thicker Walls: A massive increase in casting thickness provides superior toughness and unmatched resistance to heat-induced cracking.
High-Silicon Ductile Iron: Constructed from premium ductile iron specifically chosen to combat warping during heavy towing or high-performance driving.
Corrosion Protection: Finished in high-temperature paint to ensure they remain protected against the elements and maintain a clean appearance.
Improved Flow & Performance
BD didn't just make them stronger; they made them more efficient:
5% Flow Increase: Optimized internal geometry transfers exhaust gases to the turbocharger more efficiently, improving turbo spool and overall performance.
Fixes OEM Restrictions: These manifolds remove the notorious flow restrictions found on the driver’s side of 2001-2006 models while increasing flow on both sides by 5%.
Complete Drop-In Kit
We’ve simplified the installation process by providing a comprehensive package:
Everything Included: Sold as a complete kit featuring all necessary gaskets and high-strength fasteners.
Direct Replacement: This kit is designed to replace OEM Part # 12624683 (Right Side) and its corresponding components.
Install Time: Estimated at roughly 5 hours for a complete, professional-grade installation.
Warranty & Compliance
Coverage: Backed by a 36-month / 75,000-mile parts warranty for total peace of mind.
EPA Compliant: This product meets the EPA's reasonable basis requirements and is legal for sale and use within the jurisdiction of the federal EPA (EMS:2).
Note: Not for sale on licensed California vehicles.