HKS V10 Turbo Timer X10th generation Turbo Timer evolutionally advanced with the turbo engines. A must for the turbo engine! The original turbo timer was developed to prevent turbocharger bearing seizure by after idling. All turbochargers are exposed to high temperature exhaust gas; therefore, if the engine was shut off without after idling the turbine may be damaged. To secure sufficient turbine life, it was necessary to keep the engine idling before the engine was shut