INDUSTRIAL INJECTION 22B435 DODGE S300 SX-E 66/74 SINGLE TURBO KIT — 2010–2012 6.7L CUMMINS — .91 A/R

Step up your 6.7L Cummins (2010–2012) with Industrial Injection’s S300 SX-E 66/74 single turbo kit (.91 A/R). Center-mounted on a high-flow T4 manifold in a 2nd-gen layout, this kit is engineered for lower EGTs, strong mid-to-top-end power, and long-term reliability with the SX-E’s upgraded thrust system and FMW compressor.

Fitment

• 2010–2012 Ram 2500/3500 6.7L Cummins (ISB)
• Direct-fit 2nd-gen style single turbo conversion for factory VGT trucks in this year range

What’s Included

• S300 SX-E 66/74 turbocharger — .91 A/R T4 twin-scroll
• High-flow T4 2nd-gen style mounting hardware/manifold components
• High-flow HX40-style downpipe
• Oil feed/return lines and install hardware (as supplied by kit)

Key Features

• SX-E center-mount 2nd-gen swap for improved flow and serviceability
• Lower EGTs and wider usable powerband versus stock VGT
• Upgraded 360-degree thrust bearing and FMW compressor design
• .91 A/R turbine housing balances spool and top-end power

Recommended Parts (CPP Internal Links)

• 07.5–12 2nd-Gen Swap & Supporting Components
• 6.7L Cummins Exhaust Manifolds & Hardware
• 6.7L Cummins Downpipes & Adapters
• CPP High-Flow Turbo Oil Drain Block Fitting
• Shop 07.5–12 6.7L Cummins Turbo & Supercharger Category

Cross-Reference / Alternatives

• 22B432 — S300 SX-E 64/74 — .91 A/R
• 22B436 — S300 SX-E 66/74 — 1.00 A/R
• 22B438 — S300 SX-E 69/74 — .91 A/R

Helpful Notes

• Calibrate tuning and fueling to match the 66/74’s airflow capacity for best drivability and EGT control.
• Verify intercooler/charge pipe routing and clamp clearance with the 2nd-gen layout.
• Competition use only where applicable. End user is responsible for compliance with emissions laws.

FAQ

The .91 A/R twin-scroll housing offers a strong balance of response and top-end flow on the 6.7L, ideal for street/strip builds targeting substantial power while keeping EGTs in check.

In typical Cummins builds with proper fueling and tuning, the 66/74 SX-E combo is commonly used in the ~700–750 hp range. Actual results depend on total setup and environment.

The kit is designed to install as a 2nd-gen style conversion and includes the key hardware, manifold components, and downpipe. Always dry-fit and check clearances; some trucks may need minor tweaks due to other installed parts.

Refresh gaskets and V-band clamps, ensure a free-flowing exhaust, verify clean oil feed and an unrestricted oil drain, and consider upgraded charge pipes/boots to handle increased boost.