If a lot is good, even more is better. Hemi power was back and improved in the WK2 Grand Cherokee. The base 5.7L Hemi now packs 360 hp, while the SRT-8 variant delivers 470 hp from 6.4L, and the blown 6.2L stolen from the Hellcat unleashes 707 hp to all four wheels all the time. What a time to be a Jeep owner.

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.