prepping to order my alienhead full system w/pcv for the 08 busa. Gonna order directly through brocks so i can receive everything at the same time, and have the pcv loaded with the map and ready to go. The only filters i see they have are the bmc race filters. I have read bmc is a very good filter, but the "race" version is more for track conditions and not everyday street use. Will the race filter allow more dirt through and cause any issues down the road? Would i be better off with the normal bmc filter or k&n? Also, anybody know if the alienhead re-uses the header gaskets, if so i'm gonna order a set so i can have them ready