Chrysler 300 3.6L MoPower Custom Tune with Livernois MyCal Handheld

Unleash the hidden power of your 2015+ Chrysler 300 3.6L with MoPower Calibrations’ custom performance tune paired with the Livernois MyCal handheld programmer. After extensive dyno testing and hours of calibration work, we’ve developed a tune that delivers up to +40 whp and +40 ft-lbs torque across the RPM range while maintaining OEM reliability.

Dyno-Tested, Street-Proven

Starting with a stock Chrysler 300, our team established a factory baseline and refined the calibration to optimize fueling, ignition, torque management, and knock thresholds. The result is sharper throttle response, stronger torque delivery, and a wide-open-throttle pull that transforms the driving experience.

MoPower Chrysler 300 3.6L Tune Features

• Improved throttle response and acceleration
• +40whp / +40tq dyno-verified gains
• Enhanced low-end torque and stronger WOT power
• Optimized spark and fuel mapping
• Modified torque management algorithms
• Raised knock thresholds for safe power
• Potential for improved fuel economy under light driving

Plug-and-Play with Livernois MyCal

This tune package includes the Livernois MyCal handheld programmer, allowing you to flash your ECU directly through the OBDII port — no mailing your ECU, no downtime. You can also return to the stock tune at any time.

Fuel Options

Our Chrysler 300 3.6L tune supports:

• 91 Octane
• 92 Octane
• 93 Octane

⚠️ Use of lower octane fuel than selected may cause engine damage. MoPower assumes no liability for damage caused by 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.

Take your Chrysler 300 3.6L to the next level with a MoPower Custom Tune. With dyno-proven gains, enhanced throttle response, and the convenience of the Livernois MyCal handheld, your 300 will feel sharper, faster, and more exciting to drive.