24-01-12, 09:53 AM 
		
	
	
		HiFlo are decent quality paper, OE-style filters.  I use their oil filters in my Fazer and both air and oil filters in the R1. 
No difference performance-wise between K&N and BMC. Some K&N filters still come with the top flange moulding slightly too large for the Fazer airbox. Nothing that a few minutes Dremel-time can't fix, though.
	
	
	
	

No difference performance-wise between K&N and BMC. Some K&N filters still come with the top flange moulding slightly too large for the Fazer airbox. Nothing that a few minutes Dremel-time can't fix, though.

