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.
Crush the dyno and dominate the streets with the Unichip Performance Chip. This Unichip in-line module piggybacks your vehicle's ECU to unleash hordes of hidden power and torque. Tuned for stock and modified vehicles. 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,
Not sure which 2003 Jeep Wrangler 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:
"I have a 2003 wrangler 2.4l and this great priced Jet chip is worth every penny! More power all round, 15 miles better to a tank of gas(could be more but i drive faster now), overall it's the best purchase for any vehicle you have!" —Chris W from Reedsport, OR bought a Jet Performance Module for a 2003 Jeep Wrangler, 2.5L 4-cyl..