took it off my yz 490 BB, FMF titanium silencer, built a adapter ( hacked up my old m1000 can, best use I got out of it yet) and it worked flawless, its also no louder than a 09 slp piped sled of my buddies (packing may be weak though) but sounds tuned and better than any cat 2 stroke I've had. With the snow flap gone, all the foam (what a joke) and this can I'm almost sure I dropped around 25lbs. It also feels stronger than the other sled just like mine I rode and I was in deeper snow, this thing is a animal for a stock 153.
hopefully I have a video to post with the sound so you can here it but prob not tell later. Happy New Year,