Well it depends on which which SRI you are going to use. I installed a Injen CAI intake and an RBC intake manifold was required, however i am not aware of any other intake system that required an RBC intake manifold.The SRI which is offered by fujitia and simota for a FD2 both do not require an RBC for installation. Also if you were to custom make a SRI, you would not need to a RBC manifold.
Hope that helps

 
			
 
			
			 
					
					
					
					
				 Originally Posted by Mr Abzii
 Originally Posted by Mr Abzii
					
 
						
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