Not sure which 1998 Jeep Grand Cherokee Performance Chips & Programmers are right for you? We have over 7429 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:
"We installed the Jet Performance Chip Power Control Module in our 1998 Jeep Grand Cherokee, Ltd. Edition 5.9L V8. Have no idea how much HP it added, but it is every bit as fast on pick up as our Magnum Hemi, 5.7, and uses less pedal to get up to speed. Still analyzing as to whether we will get improved gas mileage or not. No one would ever think this Jeep has the power it has, and we call it our "Sleeper Jeep". Would recommend this product to anyone wanting MORE power.
North Carolina" —John B from Kannapolis, NC bought a Jet Performance Module for a 1998 Jeep Grand Cherokee.