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GMC Jimmy Power Programmers & Performance Tuners

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


Hypertech Max Energy Programmer

Reviewed By smith, t (lawrenceville, GA) Reviewed for a 2004 GMC Sierra —4/22/2018 10:19 AM

This is a great programmer to have, especially for wheel size changes.

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Bully Dog BDX Tuner Reviews


Better throttle response and better shift points.

Reviewed By Matthew B (San Diego, CA) Reviewed for a 2015 Toyota Tundra —4/18/2018 8:08 PM

I set the tuner for Towing, turned off the seatbelt chime and disabled the speed limiter. I am pleased with the much better throttle response and,after towing my travel trailer for a couple of hours, noticed better placed shifting while going up hills. Overall, I am happy with the tuner.

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SCT X4 Power Flash Programmer (49-State Legal) Reviews


Excellent Tuner! Easy to Use!

Reviewed By Justin P (NEW CASTLE, PA) Reviewed for a 2015 Ford F-150 —1/31/2018 5:05 AM

I had never used one before & from start to finish, I was done in under an hour. Really easy to use. I definitely noticed a pleasant increase in power & gas mileage. I recommend!

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