Rubber ring that keeps the exhaust system

[t_marat]

My exhaust started resonating sometimes. Kind of some vibration, not often.
I looked at my exhaust and it seems like I am missing one of the rubber rings, on which the exhaust hangs on.
http://www.realoem.com/bmw/showparts.do?model=HB51&mospid=47370&btnr=18_0158&hg=18&fg=20
Number 13. I think I only need the right side.

What if I put in another rubber instead of the original? Is there anything special to it?

[winfred]

those are sorta unique and don't really have anything else that takes their place, they are reinforced with a nylon band and are not just a rubber doughnut

[SRR2]

They're cheap. Why mess around trying to cook up some kind of second rate substitute.

[Alexlind123]

A generic hanger from your muffler shop would probably work, but if it were me i would opt for the higher quality/better engineered bmw product that was made for the car. If you order one online, it might be a good idea to pick up a generic ring from a muffler shop to temporarily hold the exhaust in place until your shipment arrives.

[t_marat]

I got the original (or at least similar). Yeah, they are cheap! :) Frankly I was surprised that they cost a little more than a dollar a piece.

[RobPatt]

...the nice lady put 2 in an envelope, shipped for free, got it in 2 days from Cali to Florida.... :D