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1999 Jeep Wrangler Performance Chips & Programmers

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


Hypertech Programmer

Reviewed By David N (Henderson, NV) Reviewed for a 1999 Jeep Wrangler —5/15/2013 7:12 PM

I choose Hypertech because I also own one for my 2001 diesel truck and it works very well, this one for my jeep was a little harder to install, the program (required me to use my computer) but was no problem. There is a definite HP increase, I also put a new header and exhaust on which I recommend before increasing HP in any motor.

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Superchips Trail Jammer EXT Jeep Performance Package Reviews


better power& mileage for my Jeep!

Reviewed By Kevin F (Newton, IL) Reviewed for a 1999 Jeep Wrangler —2/8/2013 5:17 AM

helped my 1999 jeep wrangler go from12.7 mpg to14.5 mpg. also helped on h.p., shifts better & more torque.

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Jet Performance Module Reviews


Jet module

Reviewed By Ron B (Lake Oswego, OR) Reviewed for a 1999 Jeep Wrangler —1/18/2010 9:05 PM

Works great, good performance.

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