6.7 Cummins Compound Turbo Kits | 2007.5–2018 Dodge Ram
DPS compound kits fit 2007.5–2018 Dodge 6.7 Cummins trucks. From stock power up to 1100 HP, these kits attach to the factory exhaust, retain the battery location, and come complete for installation. Available for trucks that have had EGR removal (DPS does not provide delete components).
Choosing Your Kit:
- Estimate your HP at the wheels, multiply by 1.25 for compound turbo power.
- Select your stage based on target HP.
- Optional: Add Turbonator® VGT for quicker spool-up and exhaust brake.
- Optional: Add ball bearing for 150–200 RPM faster spool.
Features & Benefits:
- Direct bolt-on fit, no cutting or fab needed
- Includes 3-piece high-flow exhaust manifold
- High-flow air filter, air intake, and all charge pipes
- Kevlar/Nomex lined silicone charge pipes for superior flow
- High-pressure metal charge pipe, cast hot pipe
- Steel braided oil supply lines, stainless oil drains
- S400 atmospheric + S300 high-pressure turbo (with wastegate)
- Support bracket for large turbo
- Optional VGT for exhaust brake and faster spool
- Lower EGTs by 250–400°F
- HP increase 25%–30% depending on setup
- Excellent for towing and daily driving
Why DPS Compound Turbos Work So Well:
- Cooler air (100°F+ cooler boost than single turbos)
- Boost and drive pressure nearly 1:1 for efficiency
- More complete combustion = cleaner exhaust, more power
- CAD/CAM + CFD designed for OEM-like fit and performance
Kit Includes:
- S300 + S400 turbos (except Stage 1 / add-a-turbo)
- Exhaust manifold
- All air, exhaust, and oil tubing
- Air intake + air filter
- Exhaust adapter for factory exhaust
Recommended Engine Prep:
- 2007.5–2018: Head studs over 45 PSI, fire rings over 55 PSI
- 2003–2007: Head studs over 55 PSI, fire rings over 65 PSI
- 1988–2002: Head studs over 48 PSI, fire rings over 55 PSI
Our compound kits fit 2007.5–2018 Dodge Ram Cummins trucks and deliver improved performance across the entire RPM range. Need a Ford or Chevy Cummins swap? Check out our Fummins / Chummins kits.
Note: These kits do not have a CARB exemption (exhaust manifolds do).
- S363/73 over S475 - Max 700hp - Stg 5
- S363/73 Ball Bearing over S475 - Max 700hp - Stg 5.5
- S363/73 over S480 - Max 750hp - Stg 6
- S363/73 Ball Bearing over S480- Max 750hp- Stg 6.5
- S366/73 over S480 - Max 1100hp - Stg 8
- S366/73 Ball Bearing over S480- Max 1100hp - Stg 8.5
Yes. Most setups keep the factory HE351VE/HE300VG as the high-pressure turbo. The added turbo feeds it, so you keep quick spool and gain top-end. If you want a VGT upgrade, the DPS Turbonator® VGT can replace the factory unit for quicker response, stronger exhaust-brake control, and more headroom while staying fully compatible with the compound setup.
Yes if you retain the stock VGT and follow the kit instructions. If you replace the VGT with a fixed-geometry turbo, the factory brake will not function.
Head studs are recommended as you push higher cylinder pressure. Many owners add studs around 40–45+ psi sustained boost or when aiming past roughly 600 hp. Follow proper torque and break-in.
3 Reviews
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Hello, I
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.
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Towing
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
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Power Genius
Hello Power Geniuses, Just dropping a line to say great!! job.I purchased a compound kit for my 04 Dodge in July of 2014. Fantastic power & RELIABILITY !30k miles of driving & towing with a big smile on my face.Thank you for your knowledge & great products!
