I recently aquired the Big Sucker set up for my ultra and that does not plug the breathers. It re-directs them closer to the throttle body. It works much better at keeping that crankcase scent off of my leg. What brand of filter kit did you purchase? Is it possible to post some pictures of what you are refering to?
DO NOT PLUG YOUR BREATHERS. Maybe you have the wrong Kit? The Engine needs to breathe, if you plug them oil will leak out the path of least resistence, ie. rocker boxes, ect.
My guess is that the review info on the kit he's looking at says that it eliminates the stock breather tubes. But that doesn't equate to plugging the breathers. As said above, the new kit will have banjo bolts to breath into the new backing plate. Sure of it! BUT I would say that if it doesnt, return it and buy one that does.
Thanks, I was looking at the K&N installation video and it appeared to plug them, looking at other cleaners I can see the're not. Thanks for the reply's!