Not sure which 2008 Jeep Grand Cherokee In-Line Modules are right for you? We have over 945 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:
"I have always wanted a "Performance Module/Chip". Jet is one company that a lot of people seem to talk about. It was easy to install and they said i would notice max performance after 200 mile. I just past that and I do notice a difference. is it worth paying over $200 for? I don't think it is. Not when it comes out to $14 per HP. The install took only 5 min. This chip is small so it is not an eye catcher. best part about it is that if something went wrong on my car i can take it out and take my car to the jeep dealer and they won't know i ever had it." —Peter D from Lititz, PA bought a Jet Performance Module for a 2008 Jeep Grand Cherokee.