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:
Reasons Why Our Sequential Turbo Kits Work So Well
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.
I put one of these kits on my 04 Cummins probably 5 or 6 years ago. I have nothing but good to say about it. It has towed loads that do not belong behind a pickup, on a regular basis and has never once disappointed.....
Hello,I do not normally comment on my truck part purchases, but I felt the quality of your kit was worth taking the time for. I recently purchased one of your stocker / S475 kits for my 06 ram. I have to say I am very impressed with the quality and packaging you guys do. This is my first compound turbo set up. I looked at many kits before purchasing yours. I looked at cheaper and more expensive. I had nearly talked myself into buying a cheaper kit. After receiving your kit I was immediately satisfied with spending the extra money on it. I opened the kit and was very impressed with the packaging alone. I thought to myself, if it performs half as well as it is packaged, I was going to be very happy. I had one issue after installation, but it turned out to be my fault for assuming. I assumed the tube from the output of the S475 to the input of my stock turbo was molded to the connector that uses V band clamp onto the S475. I had one extra clamp once installed and I thought it was odd, however I took the truck for a test ride and was very impressed with the faster spool up but the system got very loud and not as much boost as I had anticipated. I found out very quickly where the extra clamp went. After that mistake was remedied, the system is performing flawlessly. I am very satisfied with this kit. I look forward to putting it to the test towing in the Colorado mountains. I will be purchasing your intake for this same truck as well as probably upgrading my stock turbo to one of your new ball bearing turbos in the near future. I will not hesitate to recommend you guys to anyone who asks.
The turbonator made my 12V come to life. Before and after difference on my 96 was night and day. noticible fuel savings and power gains, can't wait to see how she tows! BB was very helpful and fun to talk with.
Not that Larry Bird. Your Add A Turbo Kit for my 2012 made a huge improvement on towing with my truck. Great power and helped with my EGT temps. Once the stock turbo goes out I plan to upgrade with the Turbonator. Thanks for making a great fitting kit
Best thing I could have done sooner was do compounds for my 6.7Cummins! Stock fuel with some items not on the truck and it tows awesome. Steep grades and EGTs issues are a thing of the past! Great kit
I had the compound kit on my 5.9 Cummins for 4 years now. It made a huge difference in towing trailers. It spools up quick for when I need to get the camper or the trailer moving from a stop. Also, it does not take a lot of effort to make a pass on someone when I’m in a hurry. I would recommend this kit to anyone, whether they want to play or work.
Hey fellas, did some upgrades after your compound set up. Hamilton stage 1 head, full manual valve body, 125 industrial injectors. Makes 683 hp and just under 1300tq at 7200 ft. Egts never get over 1100 no matter what I’m pulling or how I have my attitude adjusted. Tuned by grand by truck shop. This thing is a pulling beast. Thanks again.
