He stated that with xforce, you'll either get bloody good ones...or ones that are just garbage. I've noticed jase and pete running xforce twin tips, but alas these don't fit on ours. He paid close attention to that twin loop single tip muffler though. He's huge on remus too, stated that they are a world leader (which after doing my own research, they are huge in europe with muffler designs)...not too sure who is the better cannon maker...most likely Apexi, Tanabe or Buddyclub etc, but anyway. We shall have a look see man. I may very well get back onto Mick0082's contact here in canberra, who designed a custom single tip box for him. Mick has that thing made perfectly, and although he paid $400 for it...he got exactly what he wanted. Not too loud, perfect down low, screams a louder in lift and no drone. Take it from me dude...Mick is a perfectionist.