Product Description
Step up to reliable 700+ HP airflow with the INDUSTRIAL INJECTION S300 SX-E 66/74 Single Turbo Kit for the 2003–2007 5.9L Cummins. This 2nd-gen–style center-mount system uses a genuine BorgWarner SX-E turbo with an upgraded 360° thrust bearing and FMW compressor wheel for fast spool, lower EGTs, and repeatable performance. Complete kit, ready to install.
Fitment
- 2003–2007 Dodge Ram 2500/3500 with 5.9L Cummins (Common Rail)
- Direct 2nd-gen–style swap for 3rd-gen trucks (center-mount T4 manifold configuration)
What’s Included
- S300 SX-E 66/74 turbocharger with 1.0 A/R turbine housing
- High-flow T4 3-piece exhaust manifold (center-mount, 2nd-gen location)
- High-flow HX40-style downpipe
- Cold air intake assembly & compressor outlet elbow
- Passenger-side intercooler pipe
- Oil feed/drain lines, clamps, and turbo mounting gasket/hardware
Key Features
- 66mm FMW compressor / 74mm turbine, 1.0 A/R — strong mid/top-end with usable spool on built 5.9L
- 360° thrust bearing SX-E center section for durability
- 2nd-gen style center-mount T4 layout for excellent flow and serviceability
- Lower EGTs with proper fueling & tuning
- Complete kit — designed for clean install on 03–07 trucks
Recommended Parts (CPP internal links)
- Industrial Injection AC-0001 A/C Reroute Line (03–07) — clears lines in 2nd-gen turbo location
- Fleece S300/S400 2nd-Gen Location Oil Feed Line
- HX40 Downpipe Options & Clamps — spares/upgrades
- 03–07 Gauges / Related — EGT, boost, fuel pressure monitoring
- 03–07 Fuel System Components — lift pump/filtration to support added airflow
Cross-Reference / Alternatives
- INDUSTRIAL INJECTION 227450 — 66/74 with .91 A/R (quicker spool, slightly less top-end)
Helpful Notes
- Intended for performance use; ensure fueling, transmission, and driveline match target power.
- Verify boost control and wastegate strategy; monitor EGT, boost, and drive pressure.
FAQ
How streetable is a 66/74 with 1.0 A/R on a 5.9L?On a healthy 5.9L with proper fueling and tuning, the 66/74 1.0 A/R offers strong mid-range and top-end. For quicker spool with heavier towing, consider the .91 A/R variant.
Does this kit require fabrication?No welding is required. The kit is designed as a bolt-on 2nd-gen-style swap with supplied pipes, downpipe, lines, and hardware.
What supporting mods are recommended?A quality lift pump/filtration system, appropriate injectors/tuning, and gauges (EGT/boost/fuel pressure). An A/C reroute line is recommended for clearance in the 2nd-gen location.
Is this legal for highway use?No. This competition component is not legal for on-road, off-road, or dual-use vehicles; closed-course competition only.
