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2003 Jeep Grand Cherokee Performance Chips & Programmers

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Latest Customer Reviews

Jet Performance Module Reviews


Jet Chip

Reviewed By Dennis S (Miami, FL) Reviewed for a 2003 Jeep Grand Cherokee —9/23/2009 6:23 AM

Amazed at the instant horsepower gain. Gas milage is better. I will order one for my wife's mustang.

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Hypertech Max Energy Programmer Reviews


nice upgrade for a 3.7 jeep!

Reviewed By Steven W (Rensselaer, NY) Reviewed for a 2006 Jeep Grand Cherokee —10/31/2016 2:10 PM

I bought this for my 06 jeep grand cherokee with the 3.7 V6. it has a 2 in lift and bigger tires (31's, i didnt want to go too big since its my daily). i bought the programmer mainly for tire size calibration for my speedometer, but i was pleasantly surprised by the performance increase from the tunes. great power increase across the RPM range, throttle response is instant (i also have an injen cold air intake), its no race car but its a nice addition. MPG's increased also. only con is price

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Superchips Flashpaq F5 Tuner Reviews


Good in Performance only

Reviewed By Angel V (Lancaster, PA) Reviewed for a 2016 Ford F-150 —1/18/2017 8:49 PM

I installed the product my truck with 87oct and gain some power but no MPG, Switch to gas saver mode,did not feel any change over the 87oct. I finally put it on 91 Oct.and yesI felt a lot more power and better acceleration and torque, the only thing I have felt strange is that when I go slowly it gives me a weird squeal in transmission and I'm worrying a little. This product is very good in Performance Setup,for 87 and gas saver option I prefer let my truck in Stock Setup. IMOP.

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