Designed to prolong the life of your turbocharger, this greddy turbo timer allows your Porsche to idle the engine for a timed period, with the ignition key removed. This conveniently allows the engine oil and turbo center cartridge to cool down properly and prolong turbo and oil life. The run time can be programmed by the user or utilize it s full auto mode , which estimate the driving rpm according to the vehicle s alternator signal and then recommend a count down time. To prevent theft, the unit includes a parking brake and speedo hook-up which disengage operation if there is an attempt to move the vehicle without the key. The unit also includes a stopwatch/lap timer and attack modes along with a built in voltmeter and speedometer.