EXHAUST MANIFOLDS

EXHAUST MANIFOLDS

This will be the LAST Manifold you'll ever purchase --- with a ZERO percent failure rate!!!

Stainless Diesel exhaust manifolds ARE MADE IN THE USA!  Pre-drilled and tapped with 2 ports for EGT & Drive. Available in T-3 , T-4  & T-6. Our Stainless Exhaust manifolds are made with shell molding to form a Super Smooth inside and out casting, that has superior flow over and above the old type 60 grit sandpaper like casting that all the Cast Iron exhaust manifolds are made from.  Back-to-back testing with our Stainless Exhaust Manifold shows a 20hp+ increase against competitors 3-piece cast iron manifold!


  • Our manifold makes larger chargers more Drivable, Improves Horsepower, and extends the overall power curve. Excellent Fit & Finish. 
  • Stainless Steel MANIFOLD TO CYLINDER HEAD mounting Hardware and Brass 1/8" & 1/4" NPT Plugs included. 
  • Stainless Diesel 2nd gen 24v & 12v Cummins exhaust manifolds are cast with a Stainless steel "moon metal" mix made for Extreme High Heat cycling.  
  • Stainless Diesel exhaust manifolds are built with 3/4"+ thick center section with room for extra porting if desired. Thick wall castings for Great Thermal control. 
  • The most superior thermal energy retention for Faster spool up Accelerations. 
  • Super Smooth inside runner sizing is 1.650" all the way to the center outlet for Extreme high flow. 
  • Proven single piece smooth cast design has no steps that block flow in the middle like the old style 2 & 3 piece iron manifolds causing Inefficient Turbulent Air Flow Inside... Ever wonder why your stock one-piece manifold spooled better? 
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466 Tractor Exhaust Manifold

Introducing Stainless Diesel's Competition DT466 International Hi-Flow One-Piece Tractor Pulling  Ex..

$2,949.00

5.9L/6.7L Cummins Exhaust Manifold Stud Kit

STAINLESS EXHAUST MANIFOLD MOUNTING STUDS (89-18 CUMMINS)Stainless Steel Studs (12) with Serrated N..

$58.49

CAT SS Manifold

Premium 304 Stainless Steel exhaust manifold for CAT 3406, C15 & C16 enginesUnrivaled durability tha..

$1,689.00

T-3 12 Valve Stainless Diesel Exhaust Manifold

Stainless Steel Cummins Exhaust manifold T-3 12 ValveSled Puller Stainless Diesel exhaust manifol..

$675.00

T3 Spacer Plate

1" Thick T3 Divided Spacer Machined from mild steelMounting holes are non-threadedThread size opti..

$49.00

T-4 12 Valve Stainless Diesel Exhaust Manifold

T-4 Stainless Diesel Cummins Exhaust manifold.12v Sled Puller Stainless Diesel exhaust manifolds c..

$775.00

T4 Spacer Plate

1.00" Thick T4 Divided Spacer Machined from mild steelMounting holes are non-threadedThread size o..

$49.00

T-6 12 Valve Stainless Diesel Exhaust Manifold

T-6 12 Valve MONSTER FOOT Stainless Diesel Cummins Exhaust manifold.12v Sled Puller Stainless Dies..

$799.00

Competition T-6 12V 0* Valve Stainless Diesel Exhaust Manifold

Stainless Diesel 'Monster Foot' Cummins Exhaust ManifoldCompetition T-6 12V 0* Valve Stainless Die..

$974.00

T-3 24 Valve Stainless Diesel Exhaust Manifold

T-3 Stainless Diesel Cummins Exhaust manifold.24v Sled Puller Stainless Diesel exhaust manifolds ..

$650.00

T-4 24 Valve Stainless Diesel Exhaust Manifold

T-4 Stainless Diesel Cummins Exhaust manifold. 24v Sled Puller Stainless Diesel exhaust manifolds co..

$750.00

T3 Manifold to T4 Turbo ADAPTER Kit

STAINLESS DIESEL T3 manifold - T4 turbo ADAPTER kit.  1.00" thick steel. Comes with T3 gasket ..

$159.00

T-6 24 Valve Stainless Diesel Exhaust Manifold

Stainless Diesel 'Monster Foot' Cummins Exhaust ManifoldT-6 MONSTER FOOT 24v Sled Puller. Stain..

$799.00

T4 Manifold to T3 Turbo ADAPTER Kit

STAINLESS DIESEL T4 manifold - T3 turbo ADAPTER kit.  1.00" thick steel. Comes with T3 gaske..

$159.00

Competition T-6 24V 0* Stainless Diesel Exhaust Manifold

Stainless Diesel 'Monster Foot' Cummins Exhaust ManifoldCompetition T-6 24V 0* Valve Stainless Die..

$974.00

T4 Manifold to T6 Turbo ADAPTER Kit

STAINLESS DIESEL T4 manifold - T6 turbo ADAPTER kit.  1.00" thick steel. Comes with T6 gasket ..

$159.00

Manifold Bolt Kit

STAINLESS Mounting Bolt Kit for Aftermarket Cummins Exhaust Manifold.Stainless Steel - Allen H..

$29.99

12v Manifold Gaskets (6)

Includes:  Exhaust Manifold To Engine Block - 6 piece*How to tell the difference if you have a 12v o..

$29.00

Recessed Plug - 1/8" NPT

This alan head/ hex drive countersunk plug is a brass pipe fitting with 1/8" male NPT threads. The ..

$3.48

24v Manifold Gaskets (6)

Includes:  Exhaust Manifold To Engine Block - 6 piece*How to tell the difference if you have a 12v o..

$29.00