Chrysler 300 6.4L (392 HEMI) MoPower Custom Tune with Livernois MyCal Handheld

The Chrysler 300 6.4L 392 HEMI combines luxury with raw American muscle — and MoPower Calibrations makes it even more commanding with a custom ECU performance tune. Bundled with the Livernois MyCal handheld programmer, this package unleashes dyno-proven horsepower and torque gains, sharper throttle response, and optimized drivability while retaining OEM reliability.

Dyno-Proven Performance

Our engineers spent hours on the dyno and road refining spark, fueling, airflow, and torque management strategies. The result: stronger low-end torque, harder acceleration, and a sharper throttle feel that makes your Chrysler 300 SRT or 392 even more thrilling to drive.

MoPower Chrysler 300 6.4L Tune Features

• Dyno-verified horsepower & torque gains
• Sharper throttle response and quicker acceleration
• Optimized spark and fuel maps for maximum performance
• Modified torque management for stronger delivery
• Refined knock thresholds for consistent, safe output
• Supports bolt-ons such as intake & exhaust upgrades
• Compatible with Chrysler 300 SRT & 392 trims

Plug-and-Play with Livernois MyCal

The included Livernois MyCal handheld programmer makes tuning your Chrysler 300 fast and easy. Flash directly through the OBDII port — no downtime, no mailing your ECU. Switch between stock and performance tunes with ease.

Fuel Options

This calibration is designed for premium fuels 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 true potential of your Chrysler 300 6.4L 392 HEMI with a MoPower Custom Tune and Livernois MyCal handheld. Enjoy sharper throttle response, more torque, and dyno-proven horsepower gains — giving your luxury sedan the muscle car punch it deserves.