I met a guy the other week,who had a turbo fitted to his sporty believe it or not.It was a huge ugly thing hanging on the side of the engine(come to think of it,it may well have been a super charger,but dont quote me).Said it made an amazing difference to the performance,and gas milage,(obvious realy)but it kept leaking oil(the engine) no matter what he did. He did mention there was a awefull lot of rebuilding and machining involved tho,special this and special that...he lost me after about 2 minites of techspeak,but it was interresting rite up till the part when it became confusing.