If you're stuck with buying an expensive filter cap wrench or removing the sump (or getting your dealer to do a simple oil change) just to change your filter, then you might be interested in a new filter (that's on the market in Oz and elsewhere?) that has a nut on it's base, thus making removal/fitting a breeze.
The filter is made by Drift and it's part # is DI-MF418 (I bought mine from AutoBarn). As a bonus it comes with a magnetic metal trap internally for extra protection. K&N also do a filter (sorry didn't make a note of the #) with an integral nut but, the nut is spot welded on and doesn't look too strong to me, neither does it have the magnetic particle trap internally.
The filter is made by Drift and it's part # is DI-MF418 (I bought mine from AutoBarn). As a bonus it comes with a magnetic metal trap internally for extra protection. K&N also do a filter (sorry didn't make a note of the #) with an integral nut but, the nut is spot welded on and doesn't look too strong to me, neither does it have the magnetic particle trap internally.