My VN750 has a nasty case of road rash on the right air filter cover (that silver plastic crap ear). Looking at BikeBandit, i found the replacement, but I'm just slightly confused by something: Filter covers are here - but I can't tell from schematic wether 11011A (Listed as 'Inside' Air Filter Case) is simply right side version of 11011 ( 'Outside' Air Filter Case) or is it some sort of inner shell / liner / whatever. I'm particularly confused as 11011 is ~$47 and 11011A is ~$63. Can anyone clarify this for me? Are left/right air filters side-specific or interchangeable?