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GMC Jimmy Power Programmers & Performance Tuners

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Great buy

Reviewed By Kolton B (LEVELLAND, TX) Reviewed for a 2009 GMC Sierra —7/19/2016 11:58 PM

Got here extremely fast, works excellent.

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Hypertech Max Energy Programmer Reviews


Great device!

Reviewed By Evan S (SANTA CLARITA, CA) Reviewed for a 2004 Nissan Titan —1/11/2018 10:20 PM

Without changing the rpm limiters, the device changed my cruising rpm to around 900. I took my rev limiter off, and now I go all the way up to the red line when flooring it. I have seen my gas mileage go up. Before, I was averaging around 10.8 with hills, and around 11.2 on flat. Now, I am up to around 11 with hills, but 15 on flat. Its a great device and I would recommend it.

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Great tuner

Reviewed By Jacob S (BELLEVILLE, MI) Reviewed for a 2014 Ford F-150 —1/7/2018 10:57 AM

Very good pre loaded tunes. I bought this as a Christmas gift for myself, and sct does great with their tuners. It does look a little ugly and cheap, but it works great. I use the 87 tune on my 5.0 f150 and it feels like it gained a lot of power. Also fuel economy when driving reasonably is about 2mpg better just on 87 octane. I was getting around 19 combined in negative temperatures. Highly recommend it if you can get past what the device looks like.

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