Originally Posted by eric1514
Do you have any more details on that and maybe some pics? That silly resonator Onan sells looks like waste of money but a real muffler makes sense.
I bought and tried out the Onan resonator by sticking it on the end of the exhaust pipe. It was definitely a waste of money. The sound seemed a little less annoying, but there was still plenty of noise, and the dB meter app on my phone saw no difference at all. So, the Onan resonator is sitting, unused, in its original box, in my garage.