Very Pleased. Cured 98% of my Chevy Tahoe's AFM performance woes
After spending $40K+ for it, I was so unhappy with the way my brand-spanking new 2013 Tahoe LTZ ran (sputtering), I literally parked it in the garage and never drove it. After 18 months, three trips to the dealer (who told me it was "within specs"), and just 7,000 miles, I was ready to take a loss and trade it for a non-GM SUV. After reading the other reviews, as a last ditch effort, I bought the Range device, plugged it in, and "presto" - the Tahoe came to life. Worth every penny.