Years ago I heard news about K&N type filters from the local ranchers mechanics and they were complaining about em not doing a very good job in high dust areas. I have one in my Impala but it's on the road. Besides, it's just too easy to replace a paper filter as compared to cleaning and re-oiling the damn things.
2006 Ford 6.0PSD EB-50/E-PH SMB 4X4 Rock Crawler Trailer
Sportsmobile 4X4 Adventures
..........On and off road adventures