BD Diesel Exhaust Manifold Kit With Gaskets & Bolts 1041459

The BD Diesel Exhaust Manifold Kit With Gaskets & Bolts 1041459 will replace the cracked manifolds on your GM Silverado/Sierra 2500HD/3500HD or GM Express/Savana 6.6L Duramax. Get performance and durability with these enhanced Duramax exhaust manifolds, specifically designed for your Duramax engines. These upgraded manifolds not only eliminate the flow restriction found on the 2001-2006 model driver’s side (Left) exhaust manifold, but they also improve overall flow on both manifolds by 5%! Manufactured from high-silicon ductile iron to combat warping and cracking, the BD manifolds feature robust, 65% thicker castings. These manifolds are engineered to be an all-in-one drop-in kit, including all bolts and gaskets needed to make installation straightforward.