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The DiabloSport inTune i3 Platinum + Unlocked PCM Kit is the complete tuning upgrade for the 2017 Jeep Grand Cherokee 5.7L and 6.4L HEMI SUVs. From the factory, these vehicles are equipped with locked PCMs that block tuning—but this kit includes a DiabloSport Modified PCM and the inTune i3 Platinum handheld programmer (PN 8345) to safely unlock your HEMI’s performance.
Preloaded with dyno-tested tunes, the inTune i3 Platinum delivers 20–25 rear-wheel horsepower gains, improved torque, and sharper throttle response. Transmission calibrations refine shift timing and firmness, giving you smoother yet more responsive acceleration. The kit also includes the option to disable MDS (Multi-Displacement System), ensuring your Jeep runs in full V8 mode for maximum performance whenever you want it.
For drivers planning bolt-ons or future upgrades, the Platinum i3 supports CMR custom tuning, giving access to DiabloSport’s nationwide network of tuners for dyno-proven calibrations tailored to your build. Built-in data logging and diagnostics allow you to monitor performance and refine as your setup evolves.
For 2017 Jeep Grand Cherokee 5.7L & 6.4L HEMI owners who want real horsepower gains, improved drivability, and advanced tuning flexibility, the inTune i3 Platinum + Unlocked PCM Kit is the proven performance solution.