Quick acceleration off the line, faster 0-60 times and more towing power is yours with the Jet Performance Module. This performance module installs easy, is 50-state street legal, and works for both stock and modified powerplants. Plus, Jet backs this module with a 1-year warranty.
Take your performance to mach-1 with the Jet V-Force Plus Power Control Module. This in-line module improves performance and acceleration—taking your ride to the next level. Plus, 14 screen views let you keep tabs on what’s happening under the hood. 1-year warranty,
Blow off all your competition with the Extreme Power Puck Programmer from DiabloSport. Perfect for the road, street and track, this in-line module also grants up to 1-4 MPG. What’s more, DiabloSport Power Programmers are backed by a 2-year warranty.
Not sure which 2008 Jeep Grand Cherokee In-Line Modules are right for you? We have over 1502 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, 5.7L Hemi.