Dec 15, 2005 #11 F Fords4Me SDD Junior Member Joined Jun 3, 2005 Messages 23 Reaction score 0 Location Amissville, Virginia I put the minder in the end of my 6637 filter. It worked in the factory airbox, but the 6637 hasn't gotten dirty enough yet.
I put the minder in the end of my 6637 filter. It worked in the factory airbox, but the 6637 hasn't gotten dirty enough yet.
