DiabloSport Modified PCM + i3 Programmer Combo: Jeep Grand Cherokee 2020 (6.2L Trackhawk)
Diablo Sport Modified PCM and inTune i3 Programmer
2020 Jeep Grand Cherokee
PKITTHAWK20-I3
Overview:
The Diablo Sport Modified PCM and inTune i3 Programmer is a comprehensive performance tuning solution designed specifically for the 2020 Jeep Grand Cherokee. This advanced kit combines a pre-programmed, unlocked Powertrain Control Module (PCM) with the intuitive inTune i3 handheld programmer, allowing enthusiasts to unlock significant power gains and optimize drivability without complicated installations or vehicle downtime.
Ideal for Jeep owners seeking enhanced throttle response, increased horsepower, and customizable tuning options, this package offers both pre-loaded performance tunes and the ability to apply custom tunes from Diablo Sport’s nationwide network of professional tuners. Whether you want immediate power improvements or plan to upgrade your vehicle further, this kit provides a flexible and powerful platform to maximize your Jeep’s potential.
Key Features:
This performance kit offers a range of features designed to improve engine and transmission performance while providing extensive control and monitoring capabilities:
- Includes a modified, unlocked PCM programmed specifically for the 2020 Jeep Grand Cherokee
- inTune i3 programmer with a high-resolution 5-inch capacitive touch screen and full swipe functionality
- Pre-loaded dyno-tested performance tunes for 91 and 93 octane fuel to add up to 30 rear-wheel horsepower
- Performance Transmission Control Module (TCM) tune optimized for the 8-speed transmission
- Ability to read and clear diagnostic trouble codes (DTCs) for easy vehicle maintenance
- Disable Multi-Displacement System (MDS) for full-time V8 operation
- Adjustable rev limiter in drive and neutral modes by ±500 RPM
- Traction Control and Electronic Stability Program (ESP) can be disabled for track use
- Speed limiter on/off control to increase top speed
- Customizable target cooling fan temperatures and tire size adjustments for accurate speedometer readings
- Wideband oxygen sensor data logging and advanced tuning parameters including WOT fuel and spark adjustments
- Supports custom tuning from Diablo Sport’s CMR tuning dealers via built-in data logging
Construction & Design:
The modified PCM is engineered to maintain factory reliability while unlocking additional performance potential. Built with high-quality ABS housing and robust internal components, the unit is designed to withstand the rigors of daily driving and high-performance use. The inTune i3 programmer features a durable, ergonomic design with a bright, responsive touchscreen that simplifies navigation through tuning menus and real-time data monitoring.
Both components are designed for seamless integration with the Jeep Grand Cherokee’s existing systems, ensuring compatibility and ease of use without compromising factory safety features.
Performance & Sound
With the Diablo Sport Modified PCM and inTune i3 Programmer, drivers can expect noticeable improvements in throttle response, torque delivery, and overall horsepower. The included performance tunes optimize fuel and spark curves to extract more power from the 6.2L engine, while the transmission tune enhances shift quality and responsiveness. Disabling MDS ensures consistent V8 power delivery, contributing to a more aggressive engine sound and driving experience.
Installation & Fitment:
Installation is straightforward and requires no vehicle downtime. The modified PCM is pre-programmed and ready to install, eliminating the need to remove or send the stock PCM for tuning. The inTune i3 programmer connects via the OBD-II port, allowing users to upload tunes, adjust settings, and monitor vehicle performance with ease. No permanent modifications are necessary, making this kit suitable for enthusiasts who want a reversible upgrade.
What's Included:
- Modified, unlocked PCM programmed for 2020 Jeep Grand Cherokee
- Diablo Sport inTune i3 handheld programmer with touchscreen
- Required bypass module or cable for installation
- Pre-loaded performance tunes for multiple octane ratings
- Instruction manual and software for tuning and data logging
Ideal For:
This kit is perfect for Jeep Grand Cherokee owners who want to increase horsepower and torque without extensive mechanical modifications. It suits enthusiasts looking for a plug-and-play tuning solution with the flexibility to customize and upgrade tunes as performance parts are added. Track day participants, off-roaders, and daily drivers seeking improved throttle response and transmission performance will benefit from this comprehensive package.
Emissions Note
Warning: This product is not CARB (California Air Resources Board) compliant and is not street legal in California or other states with similar emissions regulations. It is intended for off-road and racing use only.

Description
Diablo Sport Modified PCM and inTune i3 Programmer
2020 Jeep Grand Cherokee
PKITTHAWK20-I3
Overview:
The Diablo Sport Modified PCM and inTune i3 Programmer is a comprehensive performance tuning solution designed specifically for the 2020 Jeep Grand Cherokee. This advanced kit combines a pre-programmed, unlocked Powertrain Control Module (PCM) with the intuitive inTune i3 handheld programmer, allowing enthusiasts to unlock significant power gains and optimize drivability without complicated installations or vehicle downtime.
Ideal for Jeep owners seeking enhanced throttle response, increased horsepower, and customizable tuning options, this package offers both pre-loaded performance tunes and the ability to apply custom tunes from Diablo Sport’s nationwide network of professional tuners. Whether you want immediate power improvements or plan to upgrade your vehicle further, this kit provides a flexible and powerful platform to maximize your Jeep’s potential.
Key Features:
This performance kit offers a range of features designed to improve engine and transmission performance while providing extensive control and monitoring capabilities:
- Includes a modified, unlocked PCM programmed specifically for the 2020 Jeep Grand Cherokee
- inTune i3 programmer with a high-resolution 5-inch capacitive touch screen and full swipe functionality
- Pre-loaded dyno-tested performance tunes for 91 and 93 octane fuel to add up to 30 rear-wheel horsepower
- Performance Transmission Control Module (TCM) tune optimized for the 8-speed transmission
- Ability to read and clear diagnostic trouble codes (DTCs) for easy vehicle maintenance
- Disable Multi-Displacement System (MDS) for full-time V8 operation
- Adjustable rev limiter in drive and neutral modes by ±500 RPM
- Traction Control and Electronic Stability Program (ESP) can be disabled for track use
- Speed limiter on/off control to increase top speed
- Customizable target cooling fan temperatures and tire size adjustments for accurate speedometer readings
- Wideband oxygen sensor data logging and advanced tuning parameters including WOT fuel and spark adjustments
- Supports custom tuning from Diablo Sport’s CMR tuning dealers via built-in data logging
Construction & Design:
The modified PCM is engineered to maintain factory reliability while unlocking additional performance potential. Built with high-quality ABS housing and robust internal components, the unit is designed to withstand the rigors of daily driving and high-performance use. The inTune i3 programmer features a durable, ergonomic design with a bright, responsive touchscreen that simplifies navigation through tuning menus and real-time data monitoring.
Both components are designed for seamless integration with the Jeep Grand Cherokee’s existing systems, ensuring compatibility and ease of use without compromising factory safety features.
Performance & Sound
With the Diablo Sport Modified PCM and inTune i3 Programmer, drivers can expect noticeable improvements in throttle response, torque delivery, and overall horsepower. The included performance tunes optimize fuel and spark curves to extract more power from the 6.2L engine, while the transmission tune enhances shift quality and responsiveness. Disabling MDS ensures consistent V8 power delivery, contributing to a more aggressive engine sound and driving experience.
Installation & Fitment:
Installation is straightforward and requires no vehicle downtime. The modified PCM is pre-programmed and ready to install, eliminating the need to remove or send the stock PCM for tuning. The inTune i3 programmer connects via the OBD-II port, allowing users to upload tunes, adjust settings, and monitor vehicle performance with ease. No permanent modifications are necessary, making this kit suitable for enthusiasts who want a reversible upgrade.
What's Included:
- Modified, unlocked PCM programmed for 2020 Jeep Grand Cherokee
- Diablo Sport inTune i3 handheld programmer with touchscreen
- Required bypass module or cable for installation
- Pre-loaded performance tunes for multiple octane ratings
- Instruction manual and software for tuning and data logging
Ideal For:
This kit is perfect for Jeep Grand Cherokee owners who want to increase horsepower and torque without extensive mechanical modifications. It suits enthusiasts looking for a plug-and-play tuning solution with the flexibility to customize and upgrade tunes as performance parts are added. Track day participants, off-roaders, and daily drivers seeking improved throttle response and transmission performance will benefit from this comprehensive package.
Emissions Note
Warning: This product is not CARB (California Air Resources Board) compliant and is not street legal in California or other states with similar emissions regulations. It is intended for off-road and racing use only.





















