The factory C.A.G.S. (Computer-Aided Gear Selector) only allows upshifts from 1st to 4th gear, preventing 2nd and 3rd gear engagement at light throttle speeds between 15 and 20 mph. The Skip Shift Kit eliminates the annoying mandatory 1st to 4th gear shift. Allows full 1st through 6th gear changes at any speed for maximum performance and acceleration. Easily installed in just minutes and OBDII compatible. This 6-Speed Skip Shift Bypass will protect the open ends of the harness and prevent throwing trouble codes. These custom-designed harness plugs not only avoid dirt/corrosion problems associated with an open-ended harness, but also allow you to easily reconnect it, if necessary, with no modifications. This will fit the ZFS6-40 six-speed manual transmission which is found on the 1989 thru 1996 Corvette Jack up your vehicle and unplug the connector on the side of the transmission (see photo 2). Plug the cags connectors into the disconnected plugs and ziptie them in place. It literally only takes a couple seconds.