Not sure which 1999 Chevy S10 Pickup Performance Chips & Programmers are right for you? We have over 7429 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:
"This thing made a big differance in my truck. Its awake now. I also gained abou 3 mpg. Awesome!" —Joe P from Loveland, CO bought a Superchips Cortex Programmer for a 1999 Chevy S10 Pickup, 4.7L V8.