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2003 GMC Envoy Performance Chips & Programmers

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Latest Customer Reviews

Jet Performance Module Reviews


seems to do the job

Reviewed By jeff l (POTTSTOWN, PA) Reviewed for a 2003 GMC Envoy —8/22/2013 10:56 AM

I purchased this for my 2003 Envoy XL 4.2L V6 for towing mostly. I also have a K+N cold air intake. My wife and I have noticed a difference in shifting gears, lower RPM's in regular driving and towing, more power where it needs to be, but have not seen a drastic change in fuel economy. Have only had it installed now for 3 weeks. I would certainly recommend this to anyone.

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Superchips Flashpaq F5 Tuner Reviews


Fast and Easy, Like I like my Women!

Reviewed By edward b (Trophy Club, TX) Reviewed for a 2016 GMC Sierra —4/26/2017 12:00 PM

I am delighted with my latest Superchips Flashpaq Tuner, this is my 3rd flashpaq tuner from Auto anything. If you have ever hesitated to purchase one of these tuners for fear of the installation process, hesitate NO longer, if i can do it ANYONE can. I have nothing but good things to say about Superchips and AutoAnything, I have and will continue to highly recommend both of these quality companies!

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DiabloSport PC Interface - USB Cable Kit Reviews


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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Year Range For GMC Envoy Performance Chips & Programmers