I have reinstalled my stock airboxes and purchased new breather tubes from Mikes. These tubes are very long. Can I simply cut them to fit the distance between the crankcase outlet and the standard airbox inlet pipes? I ask because I fear the extra length may be required to maintain some form of "pressure gradient" or other obscure mechanical necessity that inhibits the return passage of debris into the top of the case or vice versa. If I am being dumb, let me know but I don't want to cut them off, find I've screwed up and wait a month for replacements from Mikes to arrive in Oz.