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GMC Jimmy Power Programmers & Performance Tuners

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


Gas mileage versus performance

Reviewed By Richard B (MINONK, IL) —11/16/2014 9:27 AM

Was easy to install,performance is great,burns tires first 2 gears w/4wd truck,gas mileage not so good,dropped about 3+mpg down to about 13.7mpg,seems to be running real rich as black smoke out of tailpipe like a diesel when you floorboard it.was expecting better mileage and performance.

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Jet Performance Programmer Reviews


impressed so far

Reviewed By Justin C (NAVAL AIR STATION/ JRB, TX) —8/24/2014 7:14 PM

I haven't measured fuel mileage so far, but shifting is smoother. Very easy to install.

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DiabloSport PC Interface - USB Cable Kit Reviews


Great Product

Reviewed By Donald P (Junction City, KS) Reviewed for a 2008 Chevy Corvette —7/4/2014 9:05 PM

Product came fast and worked great. I would always prefer autoanythjng over its competitors.

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