RU-1830 is the part number that I think will work with the intake... It looks rather different, but it should fit within the constraints of the intake housing, and offer more filter coverage, so hopefully it'll work well. I'm going to order it up today. As far as for ceramic coating, I'd say that's definitly a good price. I didn't get charged for mine, as a friend was doing it at his own shop, and did mine along with his stuff. The ceramic coating added a good deal of rigidity to the flimsy aluminum tube from the MAF sensor to the throttle body, so it seems to have helped in that respect, too. =) I'll tell you when the K&N filter arrives, though, and keep you updated.