2007–2010 2.7L to 3.5L Engine Swap Performance ECU Calibration

Swapping from a 2.7L engine to a 3.5L in your 2007–2010 Chrysler, Dodge, or Jeep is a great upgrade — but without the correct ECU calibration, your new engine won’t perform as it should. MoPower Calibrations offers a proven 2.7L → 3.5L Performance Calibration Service to make your swap run like it came factory-equipped with the larger motor.

Why You Need ECU Calibration After a Swap

A simple engine swap isn’t enough. The ECU must properly identify the 3.5L and control fueling, spark, torque management, and transmission behavior. Without calibration, your vehicle may suffer from poor drivability, incorrect shifting, idle issues, or even no-start conditions. Our calibration corrects all of these problems, making your swap seamless and reliable.

Key Benefits of MoPower’s 2.7L → 3.5L Swap Calibration

• Seamless ECU Integration – ECU is reprogrammed to correctly recognize and manage the 3.5L engine.
• Restored Factory Functions – Idle control, diagnostics, and security/immobilizer systems remain fully functional.
• Improved Drivability – Optimized fueling and ignition timing for smooth, powerful operation on the 3.5L.
• Transmission Compatibility – Shifting patterns and torque management updated for 3.5L performance.
• Performance Confidence – Calibration designed to maintain OEM reliability while unlocking the full potential of your swap.

How It Works

1. Remove and ship your ECU/PCM from your 2007–2010 vehicle.
2. MoPower applies our tested 2.7L → 3.5L Performance Calibration.
3. We return your ECU ready to install — true plug-and-play.

Application Examples

This calibration is ideal for owners swapping engines in popular 2007–2010 Chrysler, Dodge, and Jeep platforms such as:

• Chrysler 300 (2.7L → 3.5L)
• Dodge Charger (2.7L → 3.5L)
• Dodge Magnum (2.7L → 3.5L)
• Dodge Avenger / Sebring (select models)
• Jeep Commander / Grand Cherokee (2.7L → 3.5L)

Important Shipping Notes

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

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

Failure to include this information may result in delays.

Disclaimer

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

Upgrade your Chrysler, Dodge, or Jeep the right way — with ECU programming designed specifically for your 2.7L to 3.5L swap. Trust MoPower Calibrations to make your new 3.5L run like it came that way from the factory.