The DiabloSport inTune i3 Platinum + Unlocked PCM Kit is the complete performance upgrade for the 2018 Dodge Challenger 5.7L and 6.4L HEMI. Factory PCMs are locked, preventing performance tuning—but this kit provides everything you need: a DiabloSport Modified PCM and the inTune i3 Platinum handheld programmer (PN 8345), allowing you to safely unlock your HEMI’s true performance. Preloaded with dyno-tested calibrations, the inTune i3 Platinum delivers 25–30 rear-wheel horsepower gains, improved torque, sharper throttle response, and refined 8-speed automatic transmission behavior for faster, smoother shifts. The kit also enables MDS (Multi-Displacement System) disable, ensuring your Challenger stays in full V8 mode whenever maximum performance is desired. For enthusiasts planning bolt-ons or advanced modifications, the Platinum i3 supports CMR custom tuning, giving access to DiabloSport’s nationwide network of tuners for dyno-proven calibrations tailored to your build. With built-in data logging, diagnostics, and user-adjustable features, you’ll have complete insight and control over your car’s performance. For 2018 Challenger 5.7L & 6.4L HEMI owners seeking serious horsepower gains, sharper drivability, and full tuning flexibility, the inTune i3 Platinum + Unlocked PCM Kit is the ultimate performance solution.