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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.
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The kit was well package and complete. I was really pleased with the materials and quality of the bolts as well as the manifolds. The hard part was removing the broken bolts in the heads. Once that was done, the DB manifolds were perfect and actually of better quality than OEM.
2014 ram 1500 with 122k on the clock. This will be the third time this truck has had exh manifolds replaced. The OE and OE replacement logs both warped after about 50k & 60k miles respectively. The last warpage was the last straw after listening to the exhaust tick on a 700 mile trip home towing a camper. I purchased the kit w/both manifolds and installed them last week and ended up fishing out 2 broken bolts and welding a nut on a third that was broken flush with the head not to mention 2 of 4 broken ****** bolts. The BD Diesel exhaust manifolds seem to be made out of thicker & heavier casting material, fitment was excellent, machined surfaces were superior to OE castings and I like the fact that all the necessary fasteners & spacers were included in the kit. Time will tell as to whether or not the spacers included in this kit will stop bolt breakage and warpage of the manifold. The manifolds were shipped promptly, packed very well and shipping costs were acceptable. The one wish I have with the purchasing experience is to either have the factory heat shields in place as an option during purchase or have the heat shield part numbers available in the description. Both of those shields were cracked on my truck and its the only part that I couldn't procure locally and wasn't available from BD DIesel (I fixed mine with a welder). Overall, this is an excellent kit to finally remedy the Hemi tick at an attractive price point that should reduce or eliminate the need for repeat exhaust repairs on the 5.7 Hemi engine.
Had dealer installed BD manifolds on Ram, mechanic was impressed with the improvements over OEM. Glad I found BD website to finally resolve manifolds leaks.
Manifolds fit perfectly and vary easy to bolt up and torque. I would and will recommend them over the tubular heads every time.
They looked like quality manifolds and bolted up perfect. Removed headers that cracked. I think these will be a better option than OEM manifolds.
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