DiabloSport PKITTHAWK21-i3 inTune i3 with Modified PCM - PKITTHAWK21-I3

Compatible with 2021 Jeep Grand Cherokee Trackhawk - 6.2L V8

Part Number: PKITTHAWK21-I3

The DiabloSport inTune i3 + Unlocked PCM Kit is the complete tuning solution for the Ram TRX, Dodge Durango Hellcat, and Jeep Grand Cherokee Trackhawk. These supercharged HEMI platforms come from the factory with locked PCMs that block traditional tuning, but this kit provides everything you need to safely unlock and unleash their true performance. The package includes a DiabloSport Modified PCM and the powerful inTune i3 handheld programmer (PN 8345). With preloaded dyno-tested performance tunes, you can expect 30–35 rear-wheel horsepower gains, sharper throttle response, stronger torque, and refined transmission behavior for quicker, smoother shifting. The result is a vehicle that accelerates harder, drives more responsively, and delivers the thrill your HEMI was built for. For enthusiasts planning upgrades, the Platinum i3 also supports CMR custom tuning, giving you access to dyno-proven calibrations tailored to your specific modifications. Built-in data logging makes it easy to track and refine performance as your build evolves. ⚠️ Important Note: On 2021+ models, you must save your stock calibration with your tuning device before removing the factory PCM. Please follow the included instructions for a seamless install. For TRX, Durango Hellcat, and Trackhawk owners who want power you can feel, refined drivability, and future tuning flexibility, the inTune i3 + Unlocked PCM Kit is the ultimate upgrade.

Features and Benefits

• Supports all TRX, Durango Hellcat and Trackhawk!
• Add 30-35 rwhp over stock with the provided tunes!
• Performance TCM tune included for 8 speed transmission
• Adjust target coolant temp
• Remove vehicle speed limiter
• Tunes for 91 and 93 octane fuel provided
• Custom tune support through any CMR dealer
• Includes PCM programmed to your vehicle and inTune 3!
• No vehicle downtime for tuning!
• Preloaded with multiple performance tunes
• Read/clear DTC codes
• Adjust Rev Limiter in Drive/Neutral by +/- 500 RPM
• Disable Traction Control/ESP
• Raise or Lower Idle Speed by +/- 400 RPM
• Required bypass module is included
• Speed Limiter On/Off enabling increased top speed
• Target Cooling Fan temps can be set from 150°-230° for use with cooler t-stat
• Tire Size Adjustment 20”-44”, allows for correcting speedometer for different tires
• WOT Fuel Adjustment – 1-7K RPM +/- 20%, allows for fine tuning Air/Fuel Ratio
• WOT MBT Spark 1-7K RPM +/- 10
• WOT Spark – 1-7k RPM +/- 10