Anyone who has owned a Volvo for a while is probably very familiar to Volvo's insistance of using OEM Mann oil filters. Volvo has even gone far enough to provide dealerships with filter "cut-aways" for display purposes. I really don't have a problem with using Mann oil filters. Most local imported parts houses sell them for a reasonable price($4-$5). Are there any other oil filters that have similar specs to Mann(filtering capability, quality of by-pass valve, ect.)?