K&N Filter size

[Anonymous]

I purchased a Ford Motorsport 13" air cleaner for my car. I want to switch the filter with a Holley Power Shot or something else of the sort (Accel Kool Blue) for better performance (I really would prefer a blue filter though).

Anyway, the problem is I don't know what the heck will fit the odd 13" cleaner. Does anyone have a part number for one of these filters that fit? I can't seem to find it anywhere.

Thanks.