Gentlemen: beware of the Purolator's. Changed oil yesterday and hit Autozone for filter. Fram and M/C sold out, so I'm stuck with Purolator. The "premium" filter is the 2 piece with the plastic center tube and removeable top [run, don't walk away from this POS] and the cheaper filter is the familiar Fram/ M/C filter we all know and love. I thought they had done away with these things but now they are being marketed as the "Premium" version. Let the buyer beware.