Sequential Turbo Kit, Sequential Twin Turbo Kit Kits for 5.9 & 6.7 Cummins
Make your Cummins run like it was meant to with DPS Compounds.
Sequential Turbo Kit S300/S400 turbos, by Diesel Power Source. Create the best towing/race setup. Choose your turbo sizes for your dual Sequential Twin Turbo Setup. Significantly improves power and reduce EGT's. Compound kits for 1st Gen, 2nd Gen, 3rd Gen & 4th Gen Dodge with Cummins.
From Stock HP to 1300 HP.
Sequential Turbo Kit Selector:
*All turbos include a Wastegated Exhaust Housing unless upgraded
*The following turbos can be upgraded to the Turbonator® VGT
Stage 2.5 250-625hp S362/68/0.7 SXE Billet over S475
Stage 3 350-650hp S362/71/0.7 over S475
Stage 4 350-675hp S363/68/0.7 over S475
Stage 4.5 350-700hp S363/68/ Ball Bearing over S480
Stage 5 400-700hp S363/73/0.8 over S475
Stage 5.5 400-800hp S363/73/ Ball Bearing over S480*
Stage 6 400-700hp S364/71/0.7 over S475*
Stage 8 500-1050hp S366/73/0.8 over S480*
Stage 8.5 500-1100hp S366/73/ Ball Bearing over S483*
*Kit available for 6.7 Cummins engines.
Choosing Sequential Twin Turbo Setup
Determine your horsepower level, keeping in mind our Dual Sequential Twin Turbo Kit will add about 25%
With you power determine what Stage Level of kit you want from the list above.
That's it! Select your kit from the drop-down.
Features & Benefits:
- Excellent factory-like fit. bolt-on application, no cutting or fabrication needed.
- Wastegated, allowing boost adjustment
- Performance 2nd Gen Manifold included
- Super high flow air filter
- Kevlar/Nomex lined silicone low pressure charge pipe provide superior flow and fitment compared to steel
- High pressure metal charge pipe.
- Cast hot pipe, not welded thin steel.
- Flexible Steel braided oil supply lines
- Stainless oil drain lines
- S400 Atmospheric Borg Warner turbocharger
- S300 High Pressure Wastegated turbo
- Turbonator® VGT Turbo Available for lightening fast spool up.
- Support bracket for Lower (large) turbocharger.
- Lower EGT's by 250-450 degrees, over a single turbocharger.
- Increase horsepower by 22% to 30% depending on your turbo selection.
- All of our Sequential Twin Turbo Kits are excellent for towing. But for our best Towing Twin Turbos are any of the kits using the 62mm compressor wheels, or the Stock Turbo.
- Our Cummins Sequential turbos are the best turbo upgrade for your Dodge Cummins.
Reasons Why Our Sequential Turbo Kits Work So Well
- A lot more cool air enters the cylinders, because the dual staged compressors work together within their most efficient zones. The boost air is much more efficient entering the cylinder than from a single turbo.
- The air entering the cylinder is at higher pressure, bringing the exhaust to boost pressure at 1:1 ratio or better. The intake stroke can actually produce power.
- There are additional air molecules in the cylinder which do not get involved in combustion which carry the heat out of the cylinder (similar to how a jet engine is cooler).
- More complete combustion in the cylinders because there is more air in the cylinder to burn all of the fuel.
- Diesel Power Source Sequential turbo kits are all designed on CAD/CAM Software, using CFD (Computational Fluid Dynamics) Testing. Our Cummins Compound Turbo Piping kit give a factory-like fit with the highest performance possible. Everything fits like it was built from the factory, and performs so well. You’ll wonder how you ever drove without them.
Head Studs Recommended For:
1988-2002 engines over 48 psi boost, and fire rings for over 55 psi boost
2003-2007 engines over 55 psi boost, and fire rings for over 65 psi boost
2007.5-2018 6.7 engines, over 48 psi boost, and fire rings for over 55 psi boost
Our Compound Turbo systems are all capable of over more than 55 psi, but are adjustable depending on truck.
Have a Fummins or Chummins Conversion? Click this link for our Fummins, Chummins kits:
Kits are complete, they include:
Both s300 and s400 turbos (except stocker)
Exhaust Manifold
All air, exhaust and oil tubing
Air Intake and filter
Downpipe or Adapter to fit factory exhaust (depending on truck)
Fits: 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1998.5 1999 2000 2001 2002 2003 2004 2005 2006 2007 2007.5 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 Year Trucks
***On 2nd Gen trucks with automatic transmission. The trans oil heat exchanger on the side of the engine block will need to be removed, bypassed or relocated to the frame. We sell the A/C relocation kits for this.
***Only 2002 and older kits come with a downpipe, 2003 and newer kits bolt right to the factory exhaust.
***These kits do NOT have a CARB exemption. However our exhaust manifolds do.
Free shipping to the lower 48 states. When shipping to anywhere outside of the lower 48 states, additional shipping fees may apply.
