OK, So I have the Uni foam filter that I picked up for $20.00 bucks and ran for 300 miles, and 1 oil change. Today I took a look to see if she needs to be cleaned and reoiled etc.. While I was waiting for the thing to dry out, I put back in my Factory paper filter and took her for a spin. To my suprise I can't tell the difference! I'm thinking that the Uni filter stuff, and the oil, and the freaking gloves etc.. is all a scam. What do you all think? Do you notice a difference between your factory foam or paper filters and the uni's or k&n's?