INDUSTRIAL INJECTION 22A433 DODGE S300 SX-E 66/74 SINGLE TURBO KIT — 2007.5–2009 6.7L CUMMINS — .91 A/R

Unlock reliable 700+ HP potential with faster spool and cooler EGTs. The Industrial Injection 22A433 S300 SX-E 66/74 Single Turbo Kit centers the proven S366 SX-E on a high-flow T4 manifold in a 2nd-gen style layout for your 2007.5–2009 6.7L Cummins. This .91 A/R divided (twin-scroll) housing delivers strong mid-range and top-end while maintaining street manners. Complete kit with HX40-style downpipe interface and premium hardware.

Fitment

• 2007.5–2009 Ram 2500/3500, 6.7L Cummins (automatic or manual)

What’s Included

• BorgWarner S300 SX-E 66/74 turbocharger, .91 A/R T4 divided turbine housing
• High-flow T4 manifold (2nd-gen style center-mount)
• Oil feed/return plumbing, coolant plugs (as required), clamps, gaskets, and hardware
• HX40-style downpipe interface (mates to HX40-flange downpipe)
• Charge air and intake plumbing specific to the kit layout

Key Features

• Performance & reliability: modern SX-E aero, 360° thrust bearing, forged-milled compressor wheel
• .91 A/R T4 divided: popular twin-scroll housing for strong drive pressure control
• Lower EGTs: improved turbine efficiency and 2nd-gen style flow path
• Complete kit: engineered pieces that fit and work together
• Room to grow: supports aggressive fueling, injectors, and hard-use towing/competition builds

Recommended Parts (CPP internal links only)

• ARP 247-4202 Head Stud Kit — 5.9L/6.7L Cummins
• ARP 247-4204 625+ Head Stud Kit — for high boost builds
• 07.5–12 Intake Horns & Boost Tubes — match plumbing to 2nd-gen center-mount layout
• 07.5–12 Downpipes — HX40-flange options for this kit
• 6.7L Exhaust Manifolds & hardware — gaskets, studs, and related install parts

Helpful Notes

• Tunes are recommended to optimize fueling, vane-code deletes aren’t applicable (fixed geometry turbo).
• Verify charge-pipe and downpipe alignment; minor trimming/clocking may be needed due to truck variances.
• Head studs and proper boost control are strongly advised at elevated power levels.

Cross-Reference / Alternatives

• 22A434 — S300 SX-E 66/74, 1.00 A/R housing (more top-end)
• 22A424 — S300 SX-E 62/74, .91 A/R (quicker spool/towing)
• 22A430 — S300 SX-E 64/74, .91 A/R (balanced street/track)

FAQ

Yes. This kit uses a divided (twin-scroll) T4 .91 A/R housing, which improves spool and cylinder-to-cylinder exhaust energy balance compared to single-scroll options.

With proper fueling, air, and tuning, the 66/74 SX-E is commonly used in the ~700 HP range while maintaining strong mid-range response.

No. The outlet is an HX40-style connection. Use an HX40-flanged downpipe and match the rest of the exhaust accordingly.

Head studs (ARP 2000 or 625+), appropriate intake/boost tubes for the 2nd-gen layout, quality tuning, and a healthy fuel system. For heavy towing, choose gearing/turbo size to control EGT.