The WK Grand Cherokee brought about a complete makeover in the drivetrain department from the previous generation. The trusty 4.0L straight-six was finally put out to pasture in favor of a new 3.7L V6. But the headliner was the availability of Dodge's newest Hemi V8. Displacing 5.7L in standard form and 6.1L in SRT-8 Grand Cherokees, power numbers crept up to new levels for Jeep's premium offering.

Power tuning and programming in the palm of your hand! Available for GM, FCA, Ford, and more! Multiple power levels and monitoring parameters for your gas or diesel powered ride! The powerful and wide-ranging calibrations found in our handheld and in-cabin tuners are capable of increasing performance, improving drivability, increasing towing power, and even improving efficiency.