Not sure which 1999 Chevy Suburban Power Programmers & Performance Tuners are right for you? We have over 5642 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"I really needed improvement in my Chevy Surburban while towing my 30 ft travel trailer. My vehicle was very slow in gaining speed and maintaining speed on the highway. After reading about the promise about tuners, I decided to give the Hypertech a chance. WOW! What a difference. The improvement in shifting was worth the price!! Very easy to install. I still only get 10 mpg, but at least I am towing with power. I would really like to find a mileage improvement product, but it is a 5.7l." —Daniel G from Cumming, GA bought a Hypertech Max Energy Programmer for a 1999 Chevy Suburban, 3.5L V6.