1041459 Exhaust Manifold Kit

Features:

• 65% thicker cast iron construction
• High-silicon ductile iron strength
• Resists cracking and warping
• Improves exhaust flow by 5%
• Eliminates restrictive OEM driver manifold
• Boosts turbocharger efficiency
• Predrilled pyrometer sensor port
• Corrosion-resistant high-temp coating
• Complete kit with gaskets and hardware
• Direct fit for 6.6L Duramax engines
• Designed for heavy-duty performance use
• Replaces factory manifolds directly

Built To Handle Heat And Keep Your Duramax Pulling Strong

If you have spent any time pushing your Duramax under load, you know the factory manifolds are not always up to the task. The BD Diesel exhaust manifold kit steps in with a serious upgrade that is built to handle higher temperatures and long-term stress without giving in. With castings that are 65% thicker than stock, these manifolds are designed to resist cracking and warping, even when the engine is working hard during towing or heavy hauling. Additionally, the improved internal design increases exhaust flow by 5%, helping your turbo spool more efficiently and keeping performance consistent. The driver side manifold also eliminates the restriction found in early model years, which makes a noticeable difference when you are asking more from your truck. What's more, the high temperature coating adds another layer of protection against corrosion, so these manifolds stay reliable in all kinds of environments. This is the kind of upgrade that gives you confidence every time you put your foot down.

Engineered Flow And Strength For Long Lasting Performance Gains

This manifold kit is built with high-silicon ductile iron, a material chosen for its ability to handle repeated heat cycles without losing structural integrity. The thicker wall design not only improves durability but also stabilizes exhaust temperatures, which can help protect surrounding components over time. Furthermore, the 5% increase in exhaust flow allows gases to move more efficiently toward the turbocharger, supporting better response and overall engine efficiency. The inclusion of a predrilled pyrometer port on the driver side makes it easy to monitor exhaust gas temperatures, which is especially useful for tuned or work-focused trucks. Installation is straightforward thanks to the complete kit design, which includes all necessary gaskets and fasteners for a true drop-in replacement. Designed specifically for 2001-2016 6.6L Duramax applications, this kit replaces the factory manifolds without modification. Backed by a 36 month or 75,000 mile warranty, it is a well-rounded solution for anyone looking to improve both reliability and performance.

Fitment: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Not legal for sale in California
• Fits 2001-2016 6.6L Duramax engines
• Replaces both driver and passenger manifolds
• Addresses factory driver side restriction
• Estimated install time around 5 hours
• Includes all required installation hardware
• EPA compliant for federal use
• Backed by 36 month warranty
• 75,000 mile warranty coverage limit
• Ideal for towing and performance applications
• Direct replacement with no major modifications

Install Instructions