Ok heres the deal. Im running a h22 in a civic hb i bought a spoon n1 exhaust and im goin to get it installed along with a header back stright pipe.  Ive been told by some to go with 2 1/2 and 2 1/4 by others.  A friend i had put on a 2 1/2 and says he felt like he lost power. But other reliable sources say that i should go 2 1/2.  What do u guys think?
	
		
			
		
		
	
				
			 
	 
 
		 
 
		 
 
		 
 
		 
 
		