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2003 Jeep Wrangler Performance Chips & Programmers

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Latest Customer Reviews

Jet Performance Module Reviews


Awesome change

Reviewed By Chris R (Murrieta, CA) Reviewed for a 2003 Jeep Wrangler —12/2/2013 10:18 PM

This had a great result which I had delayed trying thinking it would not measure up. My change was substantial in horsepower using the stage two tuner on a street 4.0 6 with Banks intake, headers, and an oversize exhaust. This brought all the pieces together, and I have not yet installed the 180 degree thermostat. Will see what impact this has in addition.

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Hypertech Max Energy Programmer Reviews


2003 Jeep Rubicon

Reviewed By Timothy K (Victoria, BC) Reviewed for a 2003 Jeep Wrangler —3/11/2008 7:58 PM

I reprogrammed my stock 4.0 litre 2003 Jeep with the Hypertech Max Energy Programmer, the reprogramming was simple, just fllow the instructions. I was able to set the RPM limit 500 rpm's higher, and programmed for horsepwoer/torque on 86 octane fuel. I could feel the immediate different, the lower rpm torque could be noticed, but the biggest improvement was at higher altitude, the power was there, that wasn't before. I was not afraid to pass slower traffic, as before it took considerable distance to pass slower moving vehicles. It also can clear or diagnose most error codes, which is helpful.

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Superchips Flashpaq F5 Tuner Reviews


Great tuner after a few tweaks...

Reviewed By Ryan J (FESTUS, MO) Reviewed for a 2006 Jeep Wrangler —1/17/2018 2:54 PM

Received tuner and purchase experience was wonderful. Initial installation for software was fine, however installing it in my jeep lj was not easy, at all. Had to call, customer service ans reinstall it again with an additional upgrade. All in all it seems to work fine and my jeep sounds quieter after the superchip.

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