The correct Mufflers for the 300 C & D coupes are MOPAR Sono 6-X, not the Sono 4-X. The body of the 6-X is 34 inches and total length is 39 inches. The Sono 4-X body is 29 inches and total length is 33 1/2 inches. I have both Mopar Sono mufflers in my basement which I checked the measurements. We have the Sono 6-X on our original 1957 300C which will need replacing soon. We purchased our 300C in July 1958. John Chesnutt, Portland, OR -----Original Message----- From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of Ron Waters Sent: Friday, July 23, 2010 2:08 PM To: Chrysler300@xxxxxxxxxxxxxxx Subject: Re: [Chrysler300] 300 C and D exhaust systems Hi Marv - Can we assume that the C and D hardtop's exhaust pipes are the same ? Based on the title of your email, I would assume so. But just want to verify. Thanks, Ron ----- Original Message ----- From: <mjraguse@xxxxxxx> To: <Chrysler300@xxxxxxxxxxxxxxx> Sent: Friday, July 23, 2010 9:56 AM Subject: [Chrysler300] 300 C and D exhaust systems > This past spring Joe Tonietto who owns Waldron's Exhaust worked with my 300 > D hard-top to tune in his math models necessary to supply a near perfect, > correct size exhaust and tail pipe system. The rear tail pipe turn downs > are exact as NOS. I have the correct Sono 4x mufflers with the 2 1/4" > inlet / 2" outlet and that is the correct size for a concours original > installation (ref 1957 Engineering Data Book , Vol. 1 Chassis ). Waldron's can > provide either Aluminized which I ordered or Stainless. His prices are very > reasonable especially considering the development he has provided. Joe says > he can also provide new stainless mufflers if you do not have the original > Sono's. Incidentally the correct Sono's per the data book are 35" long. > Again this is for the coupe's only. For convertilbles check with Joe as to > availability. I know he can do them also. I just cannot speak to their fit > like I can on the coupe's. You will enjoy working with Joe. > > I can provide some photo's to show the quality of the packaging. I am > extremely happy and am considering actually ordering a second set to keep for a > possible future need. An interesting discovery, at least to me, is that > after the production of the Hemi models ceased, the replacement exhaust pipes > were changed to 2" to provide an easier fit over the cross member. I have > to tell you that the look of a 2 1/4" pipe is soooo good. > > Marv Raguse > > 57 300 C and 58 300 D > > > > > Joe Tonietto > Waldron's Antique Exhaust > PO Box 99 > 208 West Main Street > Centreville, MI 49032 > > Tel: (269) 467-7185 > Toll free (US): (800) 503-9428 > Fax: (269) 467-9041 > > www.waldronexhaust.com > > > ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/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: http://docs.yahoo.com/info/terms/