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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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Banks Stinger System Reviews


Improved the pickup greatly

Reviewed By Wendy O (SETAUKET, NY) Reviewed for a 2014 Jeep Wrangler —9/9/2015 7:34 PM

Previous vehicle was a 2007 Nissan Altima with 3.5 liter engine 6 speed with 275 hp. Car had awesome pickup and I drive like Daisy Duke. Could beat many sports cars of the line and distance. Love everything about the Jeep except the truck had no pickup. My husband searched around internet and found this company. Installation was quick and easy. Made huge difference. Don't have to downshift to first to take off in traffic or pass. Well worth the money.

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