Most late model cars have built-in defence mechanisms to guard against increases in boost pressure. Such systems are important, but can be an obstacle when increasing boost pressure and the performance of your turbo charged engine. Turbosmart FCDs provide a reliable and accurate increase in the factory fuel cut out level. 

A Turbosmart FCD will allow boost pressure to be increased above the factory level and prevent momentary shutdown of the fuel injectors - hence maximising the factory turbo system.