Your Cart Is Empty

2003 GMC Envoy Performance Chips & Programmers

Have a Question?
Have a Question? Ask a product expert! (800) 874-8888 Live Chat

  • shipping icon
  • Not Rated Yet

 

View all reviews for this product

There are no customer reviews for this product

You may only compare up to 5 products at a time.
Please select at least two products to start comparing.

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.

View More Reviews

Edge Insight CS2 Monitor Reviews


Small, but still very easy to read.

Reviewed By Brian B (Billings, MT) Reviewed for a 2016 GMC Sierra —4/4/2018 6:01 AM

Super easy install. The device is tiny but still really easy to read. Tons of information.

View More Reviews

Superchips Flashpaq F5 Tuner Reviews


Bought it for improved towing from my 2011 2500 HD gas Silverado

Reviewed By Rick R (PORT HADLOCK, WA) Reviewed for a 2011 Chevy Silverado —8/9/2018 7:06 AM

The update process and reprogram of the truck was easy smooth and faultless. I haven't towed with it yet but the economy setting has improved my gas milage from 15.0 to 16.9. I guess you can say that the superchip will pay for itself in 30 fillups even if I don't realize the expected towing improvement.

View More Reviews

Year Range For GMC Envoy Performance Chips & Programmers