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
Remove and ship your ECU/PCM from your 2007–2010 vehicle.
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.
2007–2010 Chrysler / Dodge / Jeep 2.7L to 3.5L Engine Swap Performance ECU Calibration
Choose whether your PCM requires a Vehicle Identification Number (VIN) update during service. A correct VIN ensures proper factory matching, eliminates security conflicts, and maintains compliance with dealer tools and inspections.
Choices
No VIN Change Needed — Select if the PCM already has your correct VIN.
VIN Change — We will program your PCM with your vehicle’s VIN for a seamless install and full compatibility.
Note: A valid VIN match is required for emissions testing, state inspections, and factory diagnostic functions. Always confirm your VIN selection before checkout.
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Had my Jeep Wrangler JK PCM and TCM recalibrated as I swapped out to a new motor. Had it back in 3 days, been in my Jeep 8 months, running like a champ. Highly recommend MoPower
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