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

and perfectly matched to fit each other exactly

Standard plastic bypass valves like those fitted to the Cooper S from the factory struggle to withstand increased boost pressures

The Turbosmart Modular Reference Manifold

97in) Butterfly Valve

BOV Dual Port Mitsubishi-Red Aksler A Turbosmart FCD will allowEasy to install and setup, the Mitsubishi Dual Port features sequential ports for quiet operation on mild boost and full performance at full boost. SUPPLIED WITH: Blanking Plug, and Yellow Spring rated 22 to 20 InHg (installed). Second trumpet and hose blanking plugs sold separately. \t\t\t\t\t\t \t\t\t\t\t