mshred, I have the HP6 size filter on mine and like it just fine. Threy're pretty large so fitment could be a problem. I buy NAPA filters which will either be NAPA or WIX. Been using them quite a few years and have excellent results. I plumbed mine high under the rear part of the pass side fender. Flip front end gives me access and it's not in the way. I had a pic but I can't find it.