BD's 3-piece Pulse Manifold for the 1998 - 2002 Dodge 5.9L Cummins 24 Valve Diesel are cast unlike others. BD uses a high silicone ductile iron which can withstand extremely high temperatures, large single or twin turbochargers and diesel engine vibrations. The two expansion joints allow the manifolds to grow and still maintain a perfect exhaust gas seal.
These manifolds are "Pulse" tuned to assist in combustion chamber evacuation and higher exhaust flow. This results in quicker turbocharger spool up with a decreased amount of backpressure while increasing power and fuel economy. The kits also include Stainless Steel bolts and washers which help resolve the issue of lost or loose manifold bolts. Optional gaskets kits are available.