3 bolt weld on K04/K03 flange needed for 2.5" pipe. Struggling on eBay and eBay.de. May have to cut one off a downpipe or trace one from a gasket. Seems to be plenty 4 bolt ones around but lack of 3's. found one in USA but not prepared to wait and one at Bar-Tek but not clear as it lists it for kat fitment (cat?) anyone else know of anywhere? Thanks