only problem with the brembos off of an sti is that they are not a direct bolt on to a wrx.  there is a bet of modification that needs to be done in order for them to fit correctly.  i think you need to custom fab a new mounting bracket for them to work.  and i dont know how they will work with only the fronts and not the rear....arent they supposed to work together in this set up?  
 
ryan
		 
		
		
		
		
		
		
		
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