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

Remove and ship your ECU/PCM from your 2007–2010 vehicle.
We apply our 2.7L → 5.7L Performance Calibration.
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.