I have a couple of customers with Cobra slip-ons on their Wings one is a 2012, do not know the other year. The guy with the twelve said he removed the baffles and loves the sound but they reverberate in all his helmets except the shorty. The pipes look very short, not nearly long enough. Cobra needs to offer a tip that extends beyond the bag, like the stock. I don't know if that causes the reverb in the rider's helmet but seems to be a common thread.

Can anybody else add something.

BTW the sound without the baffles is very good, deep, mellow, not too loud.