Not sure which 2000 GMC Sierra 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 have a GM truck and a GM suv. One is mine and the other is my wife's. I purchased this thinking i could program both cars. Then to find out when I get it I cant. There should be a way to register your cars so you can program both and not all your friends. I would be more than happy to prove I own them some how. I still have not told my wife I spent over $300 bucks and it's only good for one car .....would you!" —Michael M from Amston, CT bought a Hypertech Max Energy Programmer for a 2000 GMC Sierra, 5.3L V8.
"I love this. It's so nice being able to watch what my truck is doing at all times. Noticed a little power gain on top end. Gas mileage def improved. Went from 14.5 to 17-18.... Totally happy with it and glad I got it. Auto anything was also great....way cheaper than anyone else and everything was as advertised" —Waynette R from Moore Haven, FL bought a Bully Dog Triple Dog GT Tuner (49-State Legal) for a 2000 GMC Sierra, 1500, 5.3L V8.
"Very nice product and seems to really have helped my truck getting up to speed and staying at speed. It also shows info like trans temp and other usefull information. The only downfall to the bully dog for gas is that it cannot change tunes on the fly like the one for the diesel. I'm not sure it helped my mpgs any but has made my truck a lot more enjoyable to drive." —Travis W from Joelton, TN bought a Bully Dog Triple Dog GT Tuner (49-State Legal) for a 2000 GMC Sierra, 1500, 5.3L V8.
"Great Product I would highly recommend! It was very easy to install, took me about 45 minutes because i took the time to run all the wires inside of my trim. My truck is a 1500 5.3L with 4.10 gears. I was getting around 13 mpg before, already seeing results around 15 mpg with the Bully Dog and a lot more power! I am currently running it in regular mode, will be switching it to performance mode soon can't wait to see what it will do then!" —William L from Grand Ledge, MI bought a Bully Dog Triple Dog GT Tuner (49-State Legal) for a 2000 GMC Sierra, 1500, 5.3L V8.
"Helped alot with throttle response but that's pretty much all it does. Does not really help gas milage" —Edward E from Appleton, WI bought a Superchips Flashpaq Tuner for a 2000 GMC Sierra, 5.3L V8.