The power tuning works for some, for some it doesn't. I suffered with knock retard when I tried it. It does shine on changing shift points, rpm limiter, gear and tire size compensation, top speed limiter. If I was going to buy one at this point, I would pony up the additional $$ for LS1 Edit.

 

Ya i'v heard a bit of both to.. but i got one coming in next week for my car.. i'm mainly buying it for the rev limiter, speed limiter, and fan control.. wouldn't be suprised if i didn't gain no power.

 

Is hypertech really worth it. Some have told it is great , some have told it is worthless?