Whats the Difference
 

Is it worth changing the intercooler on wrx my04 to sti intercooler :wonder:

Only if you are increasing the power , the standard one is still good. You may have to change the undertray aswell though and then maybe get a bigger scoop because they look better in my opinion.

gives the top of the engine a nice facelift if nothing else,wouldn"t be any major power gains or advantages over whats on already