I have a JDM HKS Super Drager 2.5" catback with a 2.5" test pipe that I'll sell for $175, picked up in Augusta. It's great shape. I used it with both a KA and an SR. On the KA, it was great. Nice tone (not raspy at all), and very good power band. On the SR....it was DEAD QUIET. Very nice tone, but probably as quiet as a stock KA-powered 240...if not quieter. I only replaced it because I wanted to step up to 3" piping. PM if you're interested.