Anyway to add new processor to MacBook 5,1 or MacBook Air 204 I'd like to add a faster processor to my MacBook Air 2014 or my MacBook 5,1 unibody. Is this possible at all?
Nope. MacBook Air processors (and RAM and storage, at least in that model) are soldered to the logic board, so there is no way to remove that processor from the logic board without destroying both of them.