http://www.modernperformance.com/all/gtech.shtml

I saw it on the speed channel and it seemed pretty damn cool. If it works it would really save money on dyno's and track days.
ANyone had any experience or any general feed back at all would be cool

I dont know how accurate it is. Some people swear by it but I'd rather do it the old fassion way

I'm no genious and I've never used one of those. But I think it will give you a pretty close estimate of what your car is capable of. But it will definatly not take the place of a dyno.

I bought one~! I got the RR version which hooks into a computer. I think it will be cool. And there are no dyno's or tracks within 100 miles of here and thats a low estimate.
Once I receive it I will post my times and power.