still selling my 2 used green filters plus filter cleaning kit for cheap. they should fit slk280, 350, and 55. reason for selling is i went with a custom intake setup that uses conical filters. i'm looking for best offer and i'm paypal verified. i prefer to ship domestic but if you are international, i can check to see how much shipping costs will be. any questions, please send me a pm and let me know. thanks for looking.