computer hardware relating to the land, air and water vehicle industry; computer software relating to the land, air and water vehicle industry, namely, computer software for engine and transmission tuning, engine and transmission testing, engine and transmission performance management, engine and transmission development; computer that interfaces with and communicates information on a data link for engine and transmission tuning, testing, and performance management, and electronic automotive diagnostic equipment; tuners, namely, electronic motor vehicle ignition, power-train, transmission and power case tuning kits comprised of an electronic control unit to alter engine and transmission performance; calibration instruments, namely, computer software and computer hardware for engine and transmission calibration; calibration checking instruments, namely, computer chips; fault diagnostic equipment for use in servicing of land, air and water vehicles, namely, electronic vehicle diagnostic computer hardware and software for use in interfacing with a vehicle's onboard computer(s); apparatus for performing diagnostic analysis of electronic components, namely, computer and computer systems comprising computer hardware, firmware and software for retrieving and clearing diagnostic trouble codes for computerized systems in vehicles; diagnostic apparatus for use in land, air and water vehicles, repair and maintenance, namely, an engine diagnostic connector for identifying faults in the combustion system and computerized system in vehicles; electronic cables; measuring, signaling apparatus and instruments, namely, emergency warning lights, digitizers, gauges, namely, air/fuel ratio gauges, boost gauges, vacuum gauges, temperature gauges, namely, intake and exhaust gas temperature gauges, voltage gauges; the foregoing signaling apparatus and instruments also being output to or readable via screen, monitor or computer display; apparatus for recording, transmission or reproduction of data