Experience performance and durability with the enhanced Duramax exhaust manifolds, specifically designed for the 2001-2016 6.6L Duramax engines. The BD upgraded manifolds remove the flow restriction found on the 2001-2006 model driver's side manifold and efficiently transfer exhaust gases to the turbocharger. Crafted with precision, the BD manifolds feature robust, 65% thicker designed castings constructed from high-silicon ductile iron to combat warping and cracking. Designed to be a one-stop drop-in kit, including all fasteners and gaskets needed to make installation quick.

• 5 Percent Increase In Flow
• Cast Iron Construction
• Cast iron construction with 65% thicker walls for increased toughness and resistance to cracking
• Efficiently transfer exhaust gases to the turbocharger
• High Temperature Paint For Corrosion Protection
• Predrilled Pyrometer Port On Driver Side
• Predrilled pyrometer port on driver's side manifold for easy sensor install
• Sold as a complete kit with gaskets and fasteners for easy install