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Dodge Cummins Steed Speed Exhaust Manifold

89-18 Dodge Cummins Steed Speed T4 Exhaust Manifold



*By checking this box you agree and understand that this part will take 4-6 weeks before shipping.


Currently all Steed Speed items have a 4-6 week lead time 

The only manifold available to give a substantial gain in power and fuel economy.
Not cheap cast and not weak tubular. This is the finest fully CNC machined billet turbo manifold on the planet.
Easily outperforms every other manifold available.

Engine dyno testing shows a 30HP gain over other "3 piece" manifolds!
This manifold performs as well as the other "3 piece" manifolds with the high-flow center section available from certain vendors, but it provides it with a lower backpressure!
Wastegate port features a 2.5" flange.

1 : Highest power
2 : Best economy
3 : Lowest EGTs
4 : Most durable
5 : Fastest turbo spool


  • Turbo mounting hardware
  • Turbo to manifold gasket
  • Cylinder head to manifold gaskets

20 degree flange manifolds are BUILT ON DEMAND and may take 4-6 weeks to build before shipment!

Please note: Some customers may experience turbo oil feed line clearance issues. You will have to get a new turbo feed line made with a 90 degree fitting or source a 45 degree fitting.

Your satisfaction is guaranteed! If for any reason you are not happy with your Cummins manifold you can return it to us for a full refund. This does NOT apply to manifolds ordered incorrectly. Please BE CERTAIN of the wastegate style you want before you order it. ALL SALES ARE FINAL ON MANIFOLDS ORDERED WITH GATE PORTS. 

Wastegate port adds an additional $250 to the product price.


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