EXHAUST MANIFOLD RAM 2500/3500 PICKUP 6.7L CUMMINS 2019-2024Cummins inline 6 engines are notorious for cracking their long, one piece cast iron manifolds, a problem that still affects many RAM trucks. BD Diesels exhaust manifold solves this with a thick wall casting and slip joint center section, allowing natural expansion and contraction to greatly reduce the risk of cracks. Its divided Pulse Manifold design optimizes exhaust flow by harnessing the engines natural exhaust pulses for smoother operation and