i've used k&n filters on off road vehicles for years in the worst conditions,sand dunes,dirt roads ,silt beds'the worst' and haven't had any problems with k&ns.my current off road car is a morphic 'tyrant' duel sport with a dynoed 505hp ls2 vette motor.for pics go to morphic ind .com,my car is the orange and blue, and no i don't work for k&N,i'am real estate broker.
