Make sure you get a filter with a valve in it that prevents it from leaking out, from what I've seen on here Fram doesn't fit the bill but some of the cheaper ones do.
I'm running a cone filter on mine, seems to help some, sounds better too.

2001 Sportage, TJ 106's, Everet spacers and bumpstops, Bilstein shocks on the rear, cone filter, Crager wheels, 235-75-15 Goodyear tires. Custom front winch bumper by Dave Scott. Currently DOA, but it is a work in progress.
2011 Kia Forte EX