I have a 2003 Miata and am looking to add a turbo to it. What's the best way to go about it and what prices should I expect. Also can I leave the exhaust the way it is or would I need to change the header and the pipes?

 

You would need to change the header to a turbo manifold..probably want to open up your exhaust depending on what turbo you get. Turbo kits shouldnt be to expensive because alot of places make miata kits.