BD’s 3-piece Pulse Manifolds for the 1988 - 1998 Dodge 12V 5.9L Diesels 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.
The 2003-2005 Dodge Common Rail 5.9L Diesel, 2-piece offset Pulse Manifolds are also available! Whether towing or racing, help prevent cracking and leaks while at the same time increasing performance and response with BD’s Pulse Manifolds.
Why a 3 piece Pulse Manifold?
The obvious reason is to replace a cracked manifold. The 3 piece pulse flexes when under heat and pressure which drastically reduces the stress on the manifold and all but eliminates the cracked mainfold issue. The stock manifold has molded openings that are restrictive to air flow. Replacing your old manifold with a 3 piece pulse manifold will increase air flow which increases horse power and lowers EGT's. The 3 piece pulse also come pre drilled and tapped for pyrometer readings - big bonus if you want to add gauges but do not want to drill and tap your manifold!
