Jeep Grand Cherokee 3.6L MoPower Custom Tune with Livernois MyCal Handheld

Bring new life to your Jeep Grand Cherokee 3.6L Pentastar with MoPower Calibrations’ custom performance tune and the convenience of the Livernois MyCal handheld programmer. Dyno-proven to add up to +40 whp and +40 ft-lbs torque, this tune transforms your Grand Cherokee’s drivability, delivering more power, sharper throttle response, and improved torque for daily driving or off-road adventures.

Dyno-Tested & Road-Proven

We started with a stock Grand Cherokee 3.6L to establish a baseline. From there, our engineers refined fuel, spark, torque management, and knock thresholds to create a calibration that provides reliable power gains across the curve. The result: quicker acceleration, stronger towing confidence, and smoother throttle response.

MoPower Jeep 3.6L Tune Features

• +40whp / +40tq dyno-verified gains
• Sharper throttle response for better drivability
• Stronger low-end torque and wide-open-throttle power
• Optimized spark and fuel mapping
• Modified torque management algorithms
• Refined knock thresholds for safe performance
• Potential fuel economy improvements under light driving

Plug-and-Play with Livernois MyCal

The Livernois MyCal handheld programmer allows you to flash your Jeep’s ECU directly through the OBDII port. No downtime, no mailing in your ECU. Switch between stock and performance tunes anytime, right from the handheld.

Fuel Options

Our Jeep Grand Cherokee 3.6L tune is designed for premium fuels and supports:

• 91 Octane
• 92 Octane
• 93 Octane

⚠️ Running lower octane fuel than your tune requires may result in 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 hidden potential of your Jeep Grand Cherokee 3.6L Pentastar with MoPower’s Custom Tune and the Livernois MyCal handheld. Enjoy sharper throttle response, stronger torque, and dyno-proven horsepower gains that make your Jeep more capable on the street or trail.