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2004 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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Range Active Fuel Management Disable Device Reviews


Great Product

Reviewed By Lawrence D (Salem, NH) Reviewed for a 2011 Chevy Tahoe —7/29/2015 2:13 PM

I was tired of using manual M5 to disable V4 mode every time I got in my truck. This Range devise does a excellent job of disabling V4 mode. I don't care about mileage because if I did I wouldn't have bought such a large vehicle but I have not noticed any difference so far because the truck has a six speed transmission. I could feel the V4 mode going in and out all the time and the vibration that happens because of it. This is a great product and I got for a great price on Auto Anything.

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Edge Insight CS/CTS Monitors Reviews


EGT and MORE

Reviewed By mark W (Everett, WA) Reviewed for a 2015 Chevy Silverado —7/29/2015 2:54 AM

I bought the EDGE INSIGHT so I could read what my truck already knows. Install was a snap into my 2015 Silverado 3500 duramax and now I can view my EGT without drilling so I know when it's safe to shut down when I'm towing. Pre turbo EGT isn't available but I'm able to use my non-towing EGTs as target temps.

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Year Range For GMC Envoy Performance Chips & Programmers