After deciding against installing the K&N Air Intake System due to advice I got on the Forum, I'm now trying to figure out which brand of replacement filter to look for. The dealers here in Mexico really rape you on price. They can be 2 to 3 times more than in the States. So, I looked at what's available in the local Auto Zone. I've found some filters by Fram and some by STP. My Sahara has the 3.6L engine. Any suggestions on a good filter for a dusty environment?