Product Description
All-out, track-ready S400 performance for your 2003–2007 5.9L Cummins. The INDUSTRIAL INJECTION S471 2nd-gen swap kit (1.00 A/R) delivers big airflow with a V-banded race cover, a custom S&B high-flow intake, and a complete install kit engineered for a clean, reliable high-mount install. Lower EGTs and strong top-end pull—while remaining drivable when paired with the right fuel system and tuning. Injector upgrades required.
Fitment
- 2003–2007 Dodge Ram 2500/3500 5.9L Cummins common-rail
What’s Included
- BorgWarner S471 turbocharger — 71mm comp / 83×74mm turbine, 1.00 A/R (T4), V-band race cover
- Custom S&B high-flow intake for the swap kit
- Complete install kit (brackets/lines/couplers & hardware as supplied by Industrial Injection)
Tech Highlights
- Track performance focus with strong mid-to-top-end power
- Lower EGT capability with proper fueling and tuning
- Approx. 90 lb/min airflow potential
- Competition-use only
Recommended Parts (CPP internal links)
- ARP 247-4202 Head Stud Kit (5.9L/6.7L) — sealing insurance for big boost
- CP3 Injection Pumps (03–07) — 10–14mm stroker options support rail pressure
- Lift Pumps (03–07) — FASS/AirDog for stable supply and CP3 longevity
- Intercooler Pipe & Boot Kit (03–07) — withstands higher boost
- Downpipes (03–07) — options for high-mount S300/S400 applications
- Turbo Oil Feed Lines & Fittings — fresh lines/fittings recommended on install
Cross-Reference / Alternatives
- Industrial Injection 227423 — S471, 0.90 A/R (quicker spool)
- Industrial Injection 227425 — S471, 1.10 A/R (more top-end)
- See all 2nd-Gen Swap Kits (03–07)
Helpful Notes
- Injector upgrades are required to aid spool and achieve target power.
- Match lift-pump, CP3 flow, intercooler piping, and tuning to the turbo’s airflow.
FAQ
Do I need injector upgrades with this S471?Yes—Industrial Injection specifies injector upgrades are required to help increase spool-up and overall performance with this kit.
Is this a street kit?It’s designed for competition use only. Many customers run it on street/track builds with appropriate supporting mods and tuning.
What turbine A/R should I choose?0.90 A/R spools quicker; 1.00 A/R (this kit) balances spool and top-end; 1.10 A/R favors peak flow on higher-RPM/horsepower setups.
What supporting fuel mods are recommended?A high-quality lift pump and a higher-flow CP3 (10–14mm depending on goals) maintain rail pressure under load and help spool.
