2011–2014 5.7L to 6.4L (392 HEMI) Engine Swap Performance ECU Calibration

Upgrading from a 5.7L HEMI to a 6.4L (392) HEMI in your 2011–2014 Chrysler, Dodge, or Jeep platform is one of the most popular and rewarding swaps. But a direct bolt-in isn’t enough — your ECU must be recalibrated to properly manage the 392. MoPower Calibrations offers a Performance ECU Calibration Service that makes your swap perform seamlessly, reliably, and with OEM-like drivability.

Why ECU Calibration Is Required

The 6.4L HEMI requires different fueling, spark, idle control, and torque management compared to the 5.7L. Without a proper reflash, your swap may suffer from poor drivability, incorrect shift points, lean conditions, or even no-start issues. Our calibration corrects these parameters, ensuring your swap feels like a factory-installed 392.

Key Benefits of MoPower’s 5.7L → 6.4L Swap Calibration

• Seamless ECU Integration – ECU reprogrammed to properly identify and manage the 6.4L HEMI.
• Restored Factory Functions – Idle control, diagnostics, and security systems remain intact.
• Optimized Performance – Fueling and spark tables updated for the 392’s higher output.
• Transmission Compatibility – Shift scheduling and torque management recalibrated for the 6.4L powerband.
• Proven Reliability – Dyno-tested and road-validated to ensure long-term performance.

How It Works

1. Remove and ship your ECU/PCM from your 2011–2014 vehicle.
2. MoPower applies our 5.7L → 6.4L (392 HEMI) Performance Calibration.
3. We return your ECU ready to install — plug-and-play.

Supported Platforms

This swap calibration supports 2011–2014 vehicles originally equipped with the 5.7L HEMI, including:

• Chrysler 300 / 300C (5.7L → 6.4L)
• Dodge Charger (5.7L → 6.4L)
• Dodge Challenger (5.7L → 6.4L)
• Jeep Grand Cherokee (5.7L → 6.4L)

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

Failure to include this information may delay turnaround time.

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

Complete your 5.7L to 6.4L (392 HEMI) swap the right way with MoPower’s Performance ECU Calibration. Send us your ECU today and make your 392 swap run like it came that way from the factory.