The ATS three piece pulse manifold for the Dodge Cummins application with its pulse exhaust flow design, increases exhaust gas efficiency helping to spool up the turbocharger sooner with less exhaust back-pressure.

This pulse manifold design eliminates the problems that persist with the stock manifold in both 12 and 24 valve engines, that is namely the shrinking and breaking of the manifolds. The stock manifold in both 12 and 24 valve engines can shrink as much as 3/8 of an inch. This causes exhaust gasket problems, manifold-cracking problems, and exhaust flow problems created by exhaust port misalignment. In 12 valve engines, one sees sheared off manifold bolts, and this extreme shrinkage can sometimes even break the ears off the head where the stock manifold is attached.

Expansion and contraction of the ATS pulse manifold is taken up in the two expansion joints. These expansion joints are unique in design. Advanced Turbo Systems holds a U.S. patent in the expansion joints design and function. The center portion of the manifold is machined with a straight bore on each end of the center section to accept the end castings. One set of bolt holes have merely a clearance fit where the manifold attaches to the cylinder head, the other set of bolt holes have more clearance for expansion. The end castings are where the function of this design becomes unique. The end castings that install into the straight bore of the center casting are a ball circumference seal arrangement. This allows the expansion joint to have interference fit and still assemble the manifold easily; while creating an excellent seal arrangement which allows for expansion and contraction of the manifold while maintaining a positive seal. The end castings of this manifold have one hole that is bolt clearance only. This insures near perfect exhaust port alignment without exhaust manifold movement on the head. This eliminates gasket and bolt loosening problems.

The ATS three-piece pulse manifold is cast of a much higher-grade material than the stock manifold. Instead of being just cast iron like the stock manifold, the ATS manifold is a ductile casting, which will handle far more heat without being brittle. This pulse manifold is a high molly-silicon-ductile casting that is machined on state of the art palletized CNC machining centers. All Manifolds come Pre-Assembled with Black High Temperature Coating and Pre-Tapped for Pyrometer Probe 

PDW discount price of $470.00

HTT 3 Piece Exhaust Manifold

 The new 3-piece pulse manifold - 1988-2002
*Made in USA form high silicone ductile iron (SHOT PEENED)
*Provides faster spool-up. A perfect match for our quickspool turbos.
*Lowers EGT's
*Great for stock replacement or high-flow performance applications
*12 and 24 valve styles - Port matched for each version.
*Tuned, balanced flow design.
*Nominal wall thickness .300"
*This manifold flows exhaust more evenly than the stock manifold and is not as prone to cracking.
*Unlike some competitors, our manifold comes drilled and tapped for a 1/8 pyrometer, and NOW, 1/4 as well (pipe plugs installed).
*Ships ASSEMBLED at no extra charge.
*HTT manifolds comes with necessary mounting bolts and heater hose bracket where required

PDW discount price: $470.00