Got a tunnel ram setup this week and I wanted to use the bird catcher air cleaner on another setup, so when I took the air cleaner setup off I noticed the air filters were like BLACK and filthy so I thought I'd get some new ones. Holy f-ing crap, the little 6" air cleaners are like almost $40 WTF! So I looked for air filters and they were like $20 Jeez. Looked up the part number I was looking for and Rockauto had them for $9 buckeroos. Still $28 for 2 little air filters is Highway robbery to me. I guess these filters fit some 6cyl Studebaker or something like that. Ok, Rant over.