Have you tried Desmoworld? I really like the Db Eaters I got from them for the Termis on my Sport Classic. Nice compromise between open and the Db killers. It would be worth contacting them. Their service and responsiveness is top notch. Had my Db Eaters delivered in about a week from Germany to the U.S.
Not sure if these are right for your exhaust, but I would ask them- Plus they are having a sale now! : DB - Eater from Desmoworld for Termi Hyper 2in2