2007–2010 2.7L to 5.7L HEMI Engine Swap Performance ECU Calibration

Upgrading from the underpowered 2.7L V6 to a 5.7L HEMI V8 is one of the most common and worthwhile swaps for Chrysler LX/LY platform owners. But the job isn’t complete without the proper ECU programming. MoPower Calibrations provides a Performance ECU Calibration Service that ensures your swap runs smoothly, reliably, and with OEM-like drivability.

Why You Need ECU Calibration After a Swap

The factory ECU from a 2.7L cannot properly run a 5.7L HEMI without reprogramming. Fueling, ignition, idle control, torque management, and transmission shift patterns must be recalibrated. Without it, your vehicle may experience poor drivability, incorrect shifting, no-start conditions, or even damage to the new engine. Our service corrects all of this with a proven calibration designed specifically for 2.7 → 5.7 swaps.

Key Benefits of MoPower’s 2.7L → 5.7L Swap Calibration

• Seamless ECU Integration – ECU properly identifies and manages the 5.7L HEMI.
• Restored Factory Features – Idle control, diagnostics, and immobilizer/security functions remain intact.
• Optimized Performance – Correct fueling and spark maps for safe 5.7L operation.
• Transmission Compatibility – Shifting and torque management adjusted for HEMI power delivery.
• Reliability – Dyno-tested and street-validated calibrations built for long-term use.

How It Works

1. Remove and ship your ECU/PCM from your 2007–2010 vehicle.
2. We apply our 2.7L → 5.7L Performance Calibration.
3. We return your ECU ready to plug in and drive.

Supported Platforms

Our swap calibration supports 2007–2010 vehicles originally equipped with a 2.7L, including:

• Chrysler 300 (2.7L → 5.7L HEMI)
• Dodge Charger (2.7L → 5.7L HEMI)
• Dodge Magnum (2.7L → 5.7L HEMI)
• Dodge Avenger / Sebring (select 2.7L trims)
• Jeep Commander / Grand Cherokee (2.7L → 5.7L HEMI)

Important Shipping Notes

⚠️ This is a mail-in ECU calibration service. You must send us your ECU/PCM. Please include:

• Your Full Name
• Your Return Address
• Your Vehicle VIN

Missing information may delay service turnaround.

Disclaimer

• MoPower calibrations are for off-road / racing use only
• Not legal for use on public roads in many states and provinces
• Not for sale or use in California

Upgrade your Chrysler, Dodge, or Jeep the right way with a 2.7L to 5.7L HEMI ECU Calibration from MoPower. Send us your ECU today and enjoy the performance, drivability, and reliability your swap deserves.