dual fuel? as in unleaded / lpg?
i wonder how that could of blown the filter ?:-S
as for K+N filters i'd say a reputable peformance specialist would be able to help
according to the K+N website one of their dealers are: ROCKET INDUSTRIES PTY. LTD. 40 HUNTINGWOOD DRIVE, HUNTINGWOOD, NSW 2148 AUSTRALIA 612 8825 1900
but im sure theres somewhere in perth you can get them [Motoquipe?]
- just checked the motoquipe website before posting, yes they do K+N pod and panel filters, i know theres one in carousel according to the sites theres one in whitefords and one in floreat
-edit-
http://www.motoquipe.com.au/about.shtml