Not sure which 2011 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:
"After installing this in line module, gas mileage and power were immediately known. I will know a lot more after I go cross country the end of June and back. By all indications, gas mileage should really pick up more on the open road. I have one trip with the Grand Cherokee last year for comparison." —Walter J from Oceanside, CA bought a Jet Performance Module for a 2011 Jeep Grand Cherokee.