Product Description
Wake up your 6.7L Cummins with INDUSTRIAL INJECTION’s S471 2nd-Gen T4 Swap Kit (.90 A/R). This kit replaces the restrictive factory VGT with a proven 71mm S400-frame turbo for lower drive pressure, cooler EGTs, and headroom for serious horsepower—while keeping serviceability and reliability front and center.
Fitment
- 2007.5–2009 Ram 2500/3500 6.7L Cummins (6.7 ISB)
- Designed as a 2nd-Gen T4 swap layout for 6.7L trucks with 24-valve head
- Works with factory fuel system; ideal with supporting airflow & tuning upgrades
What’s Included
- S471 turbocharger (71mm compressor, S400-frame) with .90 A/R T4 housing
- 2nd-Gen style mounting hardware & install components (brackets, boots, clamps as supplied by kit)
- Oil feed/return lines & gaskets specific to the swap
- Charge & intake connections to integrate with factory/aftermarket intercooler piping
- All necessary fasteners and small parts provided by the kit
Why This Kit
- Lower drive pressure & cooler EGTs vs. stock VGT at higher power
- Stronger top-end airflow for towing or competition builds
- Simpler, non-VGT architecture for durability and easier service
Recommended Parts (CPP Internal Links Only)
- ARP 247-4202 Head Stud Kit — 6.7L Cummins
- 4–5" Turbo-Back Exhaust Systems — 6.7L Cummins
- Intercoolers & Charge Piping — 6.7L Cummins
- High-Flow Intakes — 6.7L Cummins
- Shop All Industrial Injection Products
Helpful Notes
- Professional installation recommended. Calibrations/tuning may be required for best drivability and to manage DTCs after VGT removal.
- Check downpipe connection and manifold type (T4). Some trucks may need specific downpipe or manifold pieces depending on current setup.
- Verify boost reference routing, oil feed restrictor (if applicable), and wastegate strategy per build goals.
FAQ
How much power can the S471 support?With proper fuel, airflow, and tuning, an S471 can support substantial horsepower gains over stock while keeping EGTs in check. Results vary by build.
Is this a direct bolt-on to the factory manifold?No. This is a 2nd-Gen T4 swap layout. It relocates the turbo and uses T4 mounting. Ensure your manifold and downpipe are compatible.
Can I tow with this setup?Yes—when properly matched with gearing, intercooling, and tuning. Many owners report lower EGTs under load compared to the stock VGT at similar power.
What supporting mods are most important?Head studs, free-flowing exhaust, quality intercooler piping, a high-flow intake, and appropriate tuning are the most common supporting upgrades.
