SCRM, which of the two mentioned above are you guinea-pigging for us?
I'm guinea-pigging the K & P Engineering Chrome (of course) version. Also comes in black and polished aluminum. My indy is a dealer for them, so I'll get it from him. Overall exterior dimensions are bit smaller than a stock Harley filter, and according to the manufacturer's information, and the indy who has experience with them, they clear the front sensor on twin cam models. Don't know about oxygen sensors, but since it is slightly smaller than a standard filter, common sense tells me they will clear this one if they will clear a stock one. Go browse their website (link in my first post about them)...tons of information about them there...I just can't believe that I haven't heard about them before now.