S480 Turbo / S300 Twin Turbo Kit for Dodge Cummins Compounds
High Power & EGT Control for Your Cummins Build
The DPS Dodge Cummins Compound Kit pairs the high-performance S480 turbo (now updated to our new S481) with an S300 high-pressure turbo. This twin turbo setup is engineered for serious performance, towing, and thermal control, delivering up to 1100 HP and lowering EGTs by 250–450°F.
Available Compound Turbo Stages
- Stage 3.5: Max 625 HP – S362/68/.70 Ball Bearing over S475
- Stage 4.5: Max 675 HP – S363/68/.70 Ball Bearing over S475
- Stage 4.5B: Max 675 HP – S363/68/.70 Ball Bearing over S480
- Stage 5.5: Max 750 HP – S363/73/.80 Ball Bearing over S475
- Stage 6.5: Max 750 HP – S363/73/.80 Ball Bearing over S480
- Stage 8.5: Max 1100 HP – S366/73/.80 Ball Bearing over S480
How to Choose Your Compound Kit
Start by determining your desired horsepower. Our compound systems boost power by 25–30%. Choose the appropriate stage from the list above and select it from the drop-down menu during purchase.
Features & Benefits
- Factory-like bolt-on fit – no cutting or fabrication needed
- Adjustable boost with wastegated high-pressure turbo
- Includes Diesel Power Source exhaust manifold
- Durable cast hot pipe (not thin welded steel)
- High-performance S300 and S480 (S481) turbos
- Lower EGTs by 250–450°F compared to single turbo
- Up to 30% increase in horsepower
- Ideal for towing – best results with 62mm or stock turbos
- Tested using advanced airflow modeling
- Only company offering compound kits for 1st Gen Cummins
Why DPS Compound Turbos Perform Better
Our dual-stage compressors work in their most efficient ranges, delivering cooler air—over 100°F cooler per PSI than single turbos. The boost and exhaust drive pressures approach a 1:1 ratio, maximizing combustion and reducing heat. More oxygen means more power and cleaner burn, like a jet engine. These features result in faster spool-up and massive gains in drivability and reliability.
Head Stud Recommendations
- 1988–2002 Cummins: Head studs for 48+ psi; fire rings for 55+ psi
- 2003–2007 Cummins: Head studs for 55+ psi; fire rings for 65+ psi
- 2007.5–2018 6.7 Cummins: Head studs for 48+ psi; fire rings for 55+ psi
Our kits are capable of producing over 55 psi of boost, but are fully adjustable based on your setup.
Have a Fummins or Chummins Build?
We also offer Fummins and Chummins kits tailored for Ford Cummins conversions.
Truck Fitment
Fits all Dodge Ram Cummins model years from 1988 to 2018, including: 1988–1993 12V, 1994–1998.5 12V, 1998.5–2002 24V, 2003–2007 5.9L CR, 2007.5–2018 6.7L CR.
