Very recently I've experienced 2 pairs of mufflers that were of somewhat cheap construction. The outer skin did not have very many attachment points to internal components to give rigidity to the skin. The result was that the skin vibrated somewhat like the diaphragm on a drum and at frequency that caused a resonance in the speed range of mostly 30 to 45 mph. There was not an objectionable amount of exhaust noise from the rear of the car, but within the cabin it was something I would not tolerate on my own car. Those mufflers were supplied by a vendor selling complete exhaust systems for old cars. Specifically, one set is on my brother's C300 and the other is on a friend's 300B. ------------Marshall Goodknight Please note: message attached From: "dverity@xxxxxxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx> To: "mark love" <marklove@xxxxxx>, "300" <chrysler300@xxxxxxxxxxxxxxx> Subject: Re: [Chrysler300] Fwd: Can anybody hear me? Date: Mon, 5 Oct 2020 18:16:40 -0400 ____________________________________________________________ Sponsored by https://www.newser.com/?utm_source=part&utm_medium=uol&utm_campaign=rss_taglines_more Trump Is Leaving Hospital, Says 'Don't Be Afraid of COVID' http://thirdpartyoffers.juno.com/TGL3131/5f7bb6516c1a93651476dst03duc1 Tasmanian Devils Haven't Done This in 3K Years http://thirdpartyoffers.juno.com/TGL3131/5f7bb65190b6b3651476dst03duc2 Florida Voter Caught Seeking Ballot for Dead Wife http://thirdpartyoffers.juno.com/TGL3131/5f7bb651b52bc3651476dst03duc3 [Non-text portions of this message have been removed] ------------------------------------ Posted by: "mgoodknight@xxxxxxxx" <mgoodknight@xxxxxxxx> ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to https://groups.yahoo.com/neo/groups/all/manage/edit For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang ------------------------------------ Yahoo Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo Groups is subject to: https://info.yahoo.com/legal/us/yahoo/utos/terms/