tc wings
 

where can i get a new wing at and is pre cut out?

Tamiya makes some. http://www.muchhobby.com/shopping/pr...oducts_id=1678
They are not pre-trimmed. The only kind you might find that would be ready to mount would probably be the plastic ones that don't really add much downforce.

You might find a local racer with one that they could spare from a dead shell.