Not sure which 2008 Jeep Grand Cherokee Performance Chips & Programmers are right for you? We have over 3535 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"My 2008 Jeep Grand Cherokee Overland with the .57 Hemi did not like The Jet Module all the time. When the engine would shut down 4 cylinders ( when crusing between 40 & 60 mph ) it "loped and pinged" quit a bit. And when towing my boat I woul select the "tow mode" and my ecu really hated the signals it was receiving back from the Jet. Other than that acceleration was better with the jet. I have a Mopar cold air induction system and a cat-back Magnaflow exaust on my Overland." —Steve A from Lincoln, NE bought a Jet Performance Module for a 2008 Jeep Grand Cherokee.