My 99 ultra was setup by a previous owner with a screaming eagle air filter using a 4 hole filter setup. On the K&N site I can find the correct filter for the 3 hole (hd-0800) but not the 4 hole. The stock HD SE filter for this is listed as #29446-99C. I've been reading baaaaad things about the HD C style filter and want to use a K&N, Green or equivalent. Anyone know a replacement number? Thnx.