Looks interesting, any one tried one? Did you cut it open and see the same results? Oh yeah, sorry about the Dorf site
I followed the link from www.off-road.com which is a great 4x4 web site imo...
http://www.off-road.com/ford/reviews/filtermag/
and
http://www.filtermag.com/about.htm

http://www.off-road.com/ford/reviews/filtermag/
and
http://www.filtermag.com/about.htm