Focus RS Mk2 500bhp hybrid turbo conversion - Bigger exhaust wheelTurbo purchase options. Use your own turbo send a standard Focus RS Mk2 Turbo unit in to us for the AS500 conversion, this way you don't have to pay a surchage but it will take longer to complete, in some cases we will have a turbo waiting to be sent out which we will send 'conditions apply' must be in a servicable condition Exchange In this case you pay the surchage price and then once you have removed your old turbo, send it back to us and we will