Product Description
Make big power with street-friendly spool. The Industrial Injection 227456 Quick Spool Compound Turbo Kit is a full compound system engineered for the 2003–2007 3rd Gen 5.9L Cummins. It leverages Industrial Injection’s updated piping package for an easier, cleaner install and includes a new dipstick tube and A/C retrofit line so you don’t have to bend factory lines. Lower EGTs, keep towing manners, and unlock serious headroom when paired with proper fueling and tuning.
- Designed for 2003–2007 Dodge Ram 2500/3500 5.9L Cummins (common-rail)
- Updated hot/cold pipes for improved fit and reliability
- Includes new dipstick tube and A/C retrofit line to prevent line bending
- Supports high horsepower builds with the right fuel & tune while maintaining drivability
- Full-kit configuration with matched compound turbos and complete install hardware
Fitment
- Dodge Ram 2500/3500 — 2003, 2004, 2005, 2006, 2007 (5.9L Cummins 24V, Common Rail)
What’s Included
Matched compound turbochargers, redesigned hot/cold-side piping, boots & clamps, oil feed/return lines, brackets, hardware, dipstick tube, and A/C retrofit line. (Exact contents may vary by latest manufacturer revision.)
Recommended Parts (for best results)
- CP3 injection pump upgrades (03–07 Cummins)
- 5.9L Cummins performance injectors
- ARP 625+ head studs (5.9/6.7 Cummins)
- High-flow 5" S&B air filter
- Dual CP3 / stroker CP3 fueling (see options)
Specifications
| Manufacturer | Industrial Injection |
| Part Number | 227456 |
| Vehicle Fitment | 2003–2007 Dodge Ram 2500/3500, 5.9L Cummins (3rd Gen) |
| Configuration | Compound turbo system (full kit) |
| Install Notes | Updated piping, new dipstick tube & A/C retrofit line |
| Horsepower Potential | Capable of supporting high-HP builds with appropriate fueling/tuning |
| CARB | Not CARB-approved; not for sale in CA |
| UPC | Not published by manufacturer |
Helpful Notes
- Professional installation and post-install inspection for line clearances is strongly recommended.
- Match fueling (injectors/CP3) and tuning to your power goals; monitor EGT and boost.
FAQ
Does this kit include the turbochargers?
Yes—227456 is the full compound system with matched turbos. If you need the piping-only version without turbos, see Industrial Injection 227456K (Kit Only).
What power can this support?
With proper fueling and tuning, this compound setup supports serious horsepower while retaining street/tow manners and lower EGTs compared to a large single.
Will it fit my 2006 5.9L common-rail?
Yes. It’s designed for 2003–2007 Ram 2500/3500 with the 5.9L Cummins common-rail engine.
Do I need head studs?
For elevated boost and heavy towing/performance use, ARP 625+ head studs are strongly recommended.
What else should I upgrade?
Consider higher-flow injectors, a stroker/dual CP3, and a high-flow intake filter to realize the kit’s full potential.
