BD Diesel Driver Side Exhaust Manifold - 02-13 Chevy Silverado 1500 & GMC Sierra 1500 V8Experience unparalleled performance and durability with our enhanced GMC Chevrolet truck exhaust manifolds, specifically designed for LS engines. Our BD upgraded manifolds address common exhaust manifold bolt failures by incorporating extended fasteners and spacers that effectively withstand thermal expansion. In addition, we've engineered adjusted mounting locations for the heat shield. Crafted with precision, our BD Manifolds boast a robust, thicker