Dude, if there's a Jun B.L option available, there's almost never a reason to opt for anything else, especially from a place called Tony's Mufflers.
Quite literally Jun is legendary in the KDM scene and the undisputed #1 exhaust manufacturer dating back to the early Tib days. I'd really go with theirs if you're looking for a catback. You'll never regret it in the least.