Yeah why not?? Its Like driving a go-cart on the streets and the mods are why cheap or have to be custom made. Ill be into the Turbo setup about $250 to $400 Denpending an if I need to rebuild the Turbo. It Should Push out about 125 hp Which is awsome because the stock motor pushes like 45 hp.
I can't figure out why I would rather mod my Metro than my 2.3 L Mustang powered Street Legal Dune buggy.
here are some good links for D.I.Y.
Air/Fuel Ratio Gauge
Making Turbo Manifolds, Part 1
Making Turbo Manifolds, Part 2
this made me fall out of my chair "Leaf Blower Turbo"