Dodge Challenger 6.4L (392 HEMI) MoPower Custom Tune with Livernois MyCal Handheld

The Dodge Challenger 6.4L 392 HEMI (Scat Pack, SRT) delivers serious muscle from the factory — but MoPower Calibrations takes it further with a custom performance ECU tune. Bundled with the Livernois MyCal handheld programmer, this package provides dyno-proven horsepower and torque gains, improved throttle response, and optimized drivability — all while keeping OEM reliability.

Dyno-Proven Performance

Our calibration engineers spent countless hours on the dyno and road refining spark, fuel, airflow, and torque management. The result is a performance tune that unleashes hidden potential in the naturally aspirated 6.4L HEMI, delivering stronger acceleration, better throttle response, and more power throughout the RPM range.

MoPower Challenger 6.4L Tune Features

• Dyno-verified horsepower & torque gains
• Sharper throttle response and faster acceleration
• Optimized spark and fueling curves for maximum output
• Refined torque management algorithms for stronger delivery
• Adjusted knock thresholds for safe, reliable performance
• Improved wide-open-throttle control
• Supports bolt-on upgrades such as intake and exhaust

Plug-and-Play with Livernois MyCal

The included Livernois MyCal handheld programmer makes tuning fast and simple. Flash your Challenger 392 directly through the OBDII port — no downtime, no need to ship your ECU. Switch between stock and performance tunes at any time.

Fuel Options

This calibration is designed for premium fuel and supports:

• 91 Octane
• 92 Octane
• 93 Octane

⚠️ Running lower octane fuel than your tune requires may cause engine damage. MoPower assumes no liability for incorrect fuel usage.

Important Disclaimer

MoPower Calibrations are sold for off-road use only. All performance Calibrations and Engine Control Units installed are at the customer’s own risk. MoPower Calibrations or www.mo-power.com holds no responsibility either implied or otherwise for mechanical, electrical, or other failure when using any aftermarket performance products from MoPower Calibrations. Items sold for off-road use only are illegal in many states and provinces and are intended for racing vehicles which may never be used on a public road or highway. Not for sale or use in the State of California.

MoPower Calibrations LLC is not affiliated, associated, authorized, endorsed by, or in any way connected with Diablosport, HPTuners, or SCT (Derive) or any of their subsidiaries or affiliates. The names Diablosport, HPTuners, and SCT, as well as related names, marks, emblems, and images, are registered trademarks of their respective owners.

The MoPower Difference

Unlock the full potential of your Dodge Challenger 6.4L 392 HEMI with a MoPower Custom Tune and the convenience of the Livernois MyCal handheld. Experience sharper throttle response, stronger torque, and dyno-proven gains that make your Scat Pack or SRT even more exciting to drive.