I know this discussion has come up before, but not in awhile. I'm thinkin by now, you Guys will be gettin it pretty close so i thought i'd ask before i hack my air box. I put in the K&N the other day, im puttin on the white bros. pipe and going to a 160 main ( no snorkel, left in foam pre-filter)
I already put in two uni-vents but dont want to go crazy with them. AND.. Has anybody put a vent or two on the lid similar to the air-force kit? The reason i left the foam in is cause its dry and you can see right through it so i figured it cant hinder flow much and it would keep the k&n clean longer.

 

I put a total of five of the Uni's on the rear panel of the airbox. Three down the middle, and one on each side of that row. Ixnay that foam pre-filter. If you maintain your K&N, that will just be overkill. I kept everything bellow the K&N filter line, just to be safe.