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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? 
Brand: Stainless Diesel Model: DT466
Introducing Stainless Diesel's Competition DT466 International Hi-Flow One-Piece Tractor Pulling  Exhaust Manifold! Complete with (6) manifold to cylinder head copper sealing o rings  Pre-drilled for (2) 1/4" NPT EGT & exhaust back pressure port plugsT-6 FootFor the 2018 NTPA season this manifold wa..
$2,949.00
Brand: Stainless Diesel Model: SD2G12VT3
Stainless Steel Cummins Exhaust manifold T-3 12 Valve Sled Puller Stainless Diesel exhaust manifolds come with 2 ports drilled and tapped for EGT & Drive. Our Stainless exhaust mainfolds are made with shell molding its a super smooth inside and out casting technology that has superior flow over..
$675.00
Brand: Stainless Diesel Model: SD2G24VT3
T-3 Stainless Diesel Cummins Exhaust manifold. 24v Sled Puller Stainless Diesel exhaust manifolds come with 2 ports drilled and tapped for EGT & Drive. Our Stainless Exhaust mainfolds are made with shell molding. Its a super smooth inside and out casting technology that has superior flow over an..
$650.00
Brand: Stainless Diesel Model: SD2G12VT4
T-4 Stainless Diesel Cummins Exhaust manifold. 12v Sled Puller Stainless Diesel exhaust manifolds come with 2 ports drilled and tapped for EGT & Drive. Our Stainless Exhaust mainfolds are made with shell molding its a super smooth inside and out. Casting technology that has superior flow over an..
$775.00
Brand: Stainless Diesel Model: SD2G24VT4
T-4 Stainless Diesel Cummins Exhaust manifold. 24v Sled Puller Stainless Diesel exhaust manifolds come with 2 ports drilled and tapped for EGT & Drive. Our Stainless Exhaust mainfolds are made with shell molding. Its a super smooth inside and out casting technology that has superior flow over and ab..
$750.00
Brand: Stainless Diesel Model: SD2G12VT6
T-6 12 Valve MONSTER FOOT Stainless Diesel Cummins Exhaust manifold. 12v Sled Puller Stainless Diesel exhaust manifolds come with a bolt-on CNC ported center section. 2 ports drilled and tapped for EGT & Drive. Our Stainless exhaust mainfolds are made with shell molding. Its a super smooth inside..
$799.00
Brand: Stainless Diesel Model: SD2G24VT6
Stainless Diesel 'Monster Foot' Cummins Exhaust Manifold T-6 MONSTER FOOT 24v Sled Puller. Stainless Diesel exhaust manifolds come with a bolt-on CNC'd ported center section. 2 ports drilled and tapped for EGT & Drive. Our Stainless EX mainfolds are made with shell molding its a super smooth in..
$799.00
Brand: Stainless Diesel Model: SD2GT612V-COMP
Stainless Diesel 'Monster Foot' Cummins Exhaust Manifold Competition T-6 12V 0* Valve Stainless Diesel Exhaust Manifold T-6 MONSTER FOOT 12v Sled Puller. Stainless Diesel exhaust manifolds come with a bolt-on CNC'd ported center section. 2 ports drilled and tapped for EGT & Drive. Our Stainl..
$974.00
Brand: Stainless Diesel Model: SD2GT624V-COMP
Stainless Diesel 'Monster Foot' Cummins Exhaust Manifold Competition T-6 24V 0* Valve Stainless Diesel Exhaust Manifold T-6 MONSTER FOOT 24v Sled Puller. Stainless Diesel exhaust manifolds come with a bolt-on CNC'd ported center section. 2 ports drilled and tapped for EGT & Drive. Our Stainl..
$974.00
Brand: Stainless Diesel Model: POL-M
This is basically a process to send your manifold to us to get a like new polish done! You will be charged for shipping now - this will cover the return shipping back to you. Be sure to print your order & include it 'inside' the box. - Many people ship items to us from a U-Ship UPS store an..
$249.00
Brand: Stainless Diesel Model: T3SP
1" Thick T3 Divided Spacer Machined from mild steelMounting holes are non-threadedThread size option is M10 x 1.5 ..
$49.00
Brand: Stainless Diesel Model: CPGK6-DT4
Replacements To be used with our DT466 'Tractor' Manifold.6 - Piece SetCNC'd Annealed Copper O-Ring GasketWhen compressed these gaskets create a pressure tight connection between materialsAlso known as sealing ring or lining washer, made of copper.115" THICK2.635" OD2.3275" ID..
$169.00
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