I just got my new air filters from Torrie on Friday. Pulled the air box today, pulled out the old, orange colored filters, and tried to install the new black colored filters. One filter fit, and the other didn't. They are exactly the same. Apparently, one side of the air box is just slightly less wide than the other. I shaved off about 1/8 inch of the foam with a razor blade and it fit just fine. Later on in the day, I talked to ShadowMan who feels it might be a new supplier with slightly different tolerances. This is an FYI for those who might run into this probelm again.