Outer Limits 4x4 Board

i was wondering if anybody had any ideas of what i could possibly use as an air box on a bj73 with a 3b motor and i have put a turbo on it as the factory one doesnt fit no that the remote oil filter lines are in the way and i cant get the air ducting to the turbo any where near it. i was thinking of one of the small donaldson or somthing out of hilux but i still want to hook up a snorkle as i have done a couple of water crossing lately and look like doing more. as living i vic wheres theres only mud near where i live.
also anyone reckonmend some meduim difficulty tracks in the licola area in vic never been there and going up there for queens birthday weekend with mates with bikes.or if anybody else will be up the area and doesnt mind me taging alone i would like to going up with you guys. thanks alot chris