Universal - Black - There are two types of turbo timer available from Blitz; the FATT DC and the Dual DC. They come in two parts, a control unit, and a front panel, which means the display is very small and easy to mount. The Blitz turbo timers are also fully automatic, working out the correct length of time your engine should be left idling to give the turbo bearings time to cool down, based on the way the car has been driven (the engine speed is calculated by measuring the small fluctuations in supply voltage the engine produces as it runs). This takes the guesswork out of running your car after a drive and will help to keep the engine and turbo in top condition. - The FATT DC features a built in lap timer, in-car temperature display and battery voltage. - The Dual DC includes the same features as the FATT DC (excepting battery voltage and in-car temp display) plus a boost pressure display, peak boost, and over boost warning.