Hi I'm new love the site. I have a 1997 Gmc k 1500 with the 5.7. I love the truck. I have had it for almost 5 years. only bad things are the trans went out and had to replace intake gasket. I have used this truck for everything from getting hay to driving every day. I want to get a little more power out of it but have seen so many programmers out there not sure what to get or if i did get one if it would tear up the truck where it has a little over 150,000 miles on it. Ive been told that the ones on e-bay to stay away from to get the big 500 dollar one from hypertech. I don't want to spend that much but is it worth it to. Does anyone have one of these or one of the other programmers out there and how do you like it? Thank you for any info.