i have a k&n filter, but the bmc race does flow more air just make sure u keep it clean bc ive heard people complain how dirty it gets when they ride bc it lets more air get thru, and the airbox mod consist of takin out the divertor so u let more air go thru the throttle bodies, but u will need to have the pc remap after thoi got the race version
did you run your bike for long without the dyno tune ?
I didn't, I downloaded the map right after I installed the pipes, and as for the airbox mod, look in this manual in the file vault http://www.ninja6zone.com/filevault/ZX6RR_2005_Racingkit_Manual.pdf you should find it there.i got the race version
did you run your bike for long without the dyno tune ? whats the airbox mod i have looked everywhere for it but cant seem to find any info on it