List Price: .95 Deal Price: .00 You Save: .95 (19%)Mr. Gasket's Hot Rod Street and Strip Performance Calculator is the world's first ET predictor calculator that features built-in motor building and performance solutions. At the track, this calculator will show how temperature, elevation, pressure and moisture will affect your times. In the garage, use it to instantly calculate how changes in your car's engine and fuel system will increase compression ratio, increase displacement, improve air-fuel efficiency and affect performance. It comes with an easy-to-follow users guide, a quick reference guide, two long life batteries, and is backed with a full one-year limited warranty.Expires Feb 4, 2011