Experience unparalleled performance and durability with our enhanced Dodge/RAM truck exhaust manifolds, specifically designed for 5.7L HEMI 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 independent mounting locations for the heat shield, separating it from the mounting bolts to further enhance reliability. Crafted with precision, our BD Manifolds boast a robust, thicker design, and are constructed from high-silicon ductile iron to combat warping, ensuring your vehicle remains at peak performance for the long haul.
- OE part number interchange: Left side: 68591573AB, 68365738AA, 68365739AA - Right side: 68591572AB, 68021512BA/AD/AE/AF
Made with high-silicon ductile iron
Uniform wall thickness throughout the entire manifold to prevent warping or cracking
Utilizes longer bolts and added spacers to reduce stress on fasteners
Machined bolt mating surfaces for secure bolted joint
New independent mounting location for the heat shield to further reduce stress on fasteners
Kit includes all new bolts, nuts, spacers, and gaskets
Manifolds also available as left only (Driver's side) PN:1041465 and right only (Passenger side) PN:1041469
SEMA Certification No. SC-BDD01-0138