Good product, does what I needed it to
As my title states, it's a good product and calibrated my speedo since I put 35's on. The only reason I give it 4/5 starts instead of 5/5 is because I had to put 33's in the programmer to calibrate my speedo correctly. When I put 35's and went for a drive, my speedo read 70mph when I was barely doing 60mph, what the heck? So I had to calibrate my truck about 4 times to get it dead on which was a bit annoying, but it eventually worked. Worth the $200 for me, I can't stand my speedo being off!
Did exactly what I needed it to
I wanted to turn of AFM on my 2009 Silverado and to read codes. I have not loaded any tunes so I can't comment on that. The Hypertech Max Energy 2.0 Programmer is very easy to operate and it took little time to learn it. Before I hooked it up to my truck I updated the unit from the internet. Even though it's brand new there were a couple of updates. So I suggest updating it as soon as you receive it. I'm very glad I bought the programmer.