Potato110

Gotcha. thanks for your feedback!

Thanks CamGTP. HPT is $400 for the unit then add $50 per credit and it'll do waaaaay more than i'll ever need. I figured there'd be some "bloatware" I could disable so i could get mileage gains without sacrificing power. I'd be happy with 1-2 mpg increase. in my situation do you think there's an advantage to doing it myself over using a canned tune? Thanks again

Hey All, I just bought a 2000 GMC Sierra 1500 5.3L Extended Cab Z71 4x4 and would like to get a little better gas mileage and more responsiveness if possible. I'm new to this site and new to tuning. Please forgive me if this topic has been covered already. I found another thread similar to this but it was different enough that i wanted to put my specific situation out there and get your opinions on it. I'd like to get a little better gas mileage and more responsiveness if possible without spending $500 or more for a powerful tuner that I'm not going to use the features on. Except for the Flowmaster mufflers the previous owner installed I believe it's bone stock and I don't have any plans for changing that. What tuner would get me the best bang for my buck? Thanks, Brian