Compatible with 2019 Jeep Grand Cherokee - 5.7L

Part Number: PKIT-JGCV819-T2

The DiabloSport Trinity T2 Platinum + Unlocked PCM Kit is the complete tuning and monitoring upgrade for the 2019 Jeep Grand Cherokee 5.7L HEMI. From the factory, these SUVs ship with locked PCMs that block tuning, but this kit provides everything you need—an unlocked DiabloSport Modified PCM and the powerful Trinity T2 Platinum programmer—to safely unleash your Jeep’s hidden potential. Preloaded with dyno-tested performance calibrations, the Trinity T2 Platinum delivers 20–25 rear-wheel horsepower gains, stronger torque, quicker throttle response, and refined 8-speed automatic transmission behavior for smoother, more confident acceleration. The result is a Grand Cherokee that performs better on the road, while still offering the strength and refinement Jeep drivers demand. For enthusiasts who plan bolt-ons or future upgrades, the Platinum T2 supports CMR custom tuning, giving you access to DiabloSport’s nationwide network of tuners for dyno-proven calibrations tailored to your build. With data logging, diagnostics, and performance testing built in, you can track and refine your Jeep’s performance as your build evolves. The Trinity T2 features a crisp 5-inch color touchscreen with swipe functionality, customizable gauge layouts, real-time monitoring, and performance testing tools—making it both a tuner and a monitoring powerhouse. For 2019 Grand Cherokee 5.7L HEMI owners who want horsepower gains, sharper drivability, and tuning flexibility, the Trinity T2 Platinum + Unlocked PCM Kit is the ultimate upgrade.

Features and Benefits

• 2018 Jeep Grand Cherokee 5.7
• Add 20-25 rwhp over stock on premium fuel
• Disable MDS
• Adjust throttle response for optimal pedal feel
• Remove vehicle top speed limiter
• Adjust idle RPM
• Tunes for 87, 91 and 93 octane fuel included
• Performance TCM tune for 8 speed transmission included
• No vehicle downtime for tuning!
• Preloaded with multiple performance tunes
• Read/clear DTC codes
• Customizable gauge layouts
• Upload your own background images
• Adjust Rev Limiter in Drive/Neutral by +/- 500 RPM
• Disable Traction Control/ESP
• Raise or Lower Idle Speed by +/- 400 RPM
• Required bypass module or cable 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