The original question was more out of curiosity than anything else. I"m still a relative new-comer to off road driving, but everything I've done so far involves alot more mud than dust. I do carry a spare filter when I know I'm going off road ahead of time. I've looked at the K&N filters a couple times, and now I'll probalby look at them again. AyersTG, you mentioned that you think the K&N replacement is a good investment, were you refering to just changing the filter or replacing the whole intake system? (it's for a '98 Wrangler if it makes a difference)

Thank you both for your help.

Chris.