6.7 Cummins Compound Turbo Kit (S475) for 2010–2012 Dodge Ram
Twin Turbo S475 Over DPS 63mm for 6.7L Cummins Performance
Includes 360° Thrust Bearing in Every DPS Turbo – 60% More Load Capacity
Full Compound Kit – Includes Everything for Installation
Turbo Options:
Stage 2.5 Max 625hp S362/68/.70 over S475
Stage 3 Max 650hp S362/68/.70 over S480
Stage 3.5 Max 625hp S362/68/.70 Ball Bearing over S475
Stage 4 Max 650hp S363/68/.70 over S475
Stage 4B Max 675hp S363/68/.70 over S480
Stage 4.5 Max 650hp S363/68/.70 Ball Bearing over S475
Stage 4.5B Max 675hp S363/68/.70 Ball Bearing over S480
Stage 5 Max 700hp S363/73/.80 over S475
Stage 5.5 Max 700hp S363/73/.80 Ball Bearing over S475
Stage 6 Max 750hp S363/73/.80 over S480
Stage 6.5 Max 750hp S363/73/.80 Ball Bearing over S480
Stage 8 Max 1100hp S366/73/.80 over S480
Stage 8.5 Max 1100hp S366/73/.80 Ball Bearing over S480
What Makes This Kit Unique?
- Direct bolt-on fit — no cutting or fabrication required
- High-flow 3-piece exhaust manifold (pre-tapped ports included)
- Stock oil return line — no extra block modification needed
- Largest air filter in the industry
- Compatible with OEM exhaust for 2003–2012 models
- Kevlar-lined silicone low-pressure charge pipe for easier install and improved flow
- High-pressure chrome-plated aluminum charge pipe
- Small turbo offers 150% greater wastegate capacity
- Cast hot pipe with built-in external wastegate port (stronger than welded alternatives)
- Polished DPS small turbo + Borg Warner S475 (75mm) large turbo
- Support bracket for lower turbo
- Adjustable boost pressure
- Includes dual oil drain lines
Performance & Driveability
The DPS 6.7L Cummins Compound Turbo Kit offers near-stock spool-up with significantly increased airflow. Designed for towing, racing, sled pulling, or high-performance street driving. Customers regularly report a 300–500°F drop in EGTs compared to single turbo setups.
Boost pressure typically exceeds drive pressure — unlike single turbos, which often suffer from high drive-to-boost ratios. This compound setup improves throttle response and increases horsepower across the full RPM range.
Horsepower Range:
Optimized for builds between 350 HP and 800+ HP. Designed with CAD/CAM and tested using CFD (Computational Fluid Dynamics) software for maximum airflow, durability, and perfect fitment.
What’s Included:
- DPS Turbo (different sizes to choose from)
- S475 Turbo (75mm comp / 96mm turbine / 1.32 A/R housing)
- 3-Piece exhaust manifold
- High-temp steel braided oil lines (supply & drain)
- V-band clamps, mounting bolts, gaskets, and adapters
- Cast iron elbow, support brackets, chrome & silicone charge pipes
- Complete intake system with oversized air filter
- 4" exhaust downpipe and all clamps (high-torque & low-torque)
- Installation instructions
Important Notes:
- Requires DPF & EGR delete and a compatible tuner (e.g., Smarty) for off-road use
- Most S300 turbos are compatible with this kit
- This system is for off-road use only in emissions-controlled areas
Learn more about compatible 6.7L Cummins add a turbo upgrade options
Upgrade your Cummins with a proven compound system that delivers OEM-like fitment with serious power gains.
