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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


2014 Silverado 5.3

Reviewed By Joseph P (WARNER ROBINS, GA) Reviewed for a 2017 Chevy Equinox —12/1/2017 9:27 AM

The programming was easy. I turned off the AFM to test the claims of other reviews that actually increases MPG, that's BS. MPG actually dropped. However there is a nice increase of hp. The dyno rating are on Hypertech's site. I will be turning AFM back on though.

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P

Reviewed By ricky d (mansfield, MA) Reviewed for a 2014 Ford F-150 —11/23/2017 4:06 AM

its ok

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