A seller has a bunch of them there with a buy-it-now price of $49.95. This item retails for $140. I had one a couple of years ago until my Z-28 was stolen and the G-Tech was ripped off. Fortunately I did get the car back.
These things are great fun. 0-60 time, 1/4 mile time & trap speed, 60-0 braking distance, horsepower rating, skidpad lateral Gs. Great way to test engine upgrades.
I did buy one of these Friday, and he shipped it out within 12 hours. Cool. Here's the link:
KennyH
Horsepower is cheaper than therapy.