SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

SL/R230: Good replacement muffler

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Jan 9, 2019 | 04:11 PM
  #1  
Blazeracer's Avatar
Thread Starter
Member
 
Joined: Dec 2018
Posts: 131
Likes: 15
2003 SL500
Good replacement muffler

Ok, so we got our SL500 with the resonators and mufflers gone. What's a good replacement muffler that can be used? Could maybe eBay a couple of stock mufflers?
Reply
Old Jan 14, 2019 | 10:54 AM
  #2  
Blazeracer's Avatar
Thread Starter
Member
 
Joined: Dec 2018
Posts: 131
Likes: 15
2003 SL500
Found a couple of stock mufflers on eBay from salvage yards. $111 shipped for the left and $135 shipped for the right. Both will be here by Friday. The noise is cool, but it's starting to wear thin..
Reply
Old Jan 14, 2019 | 10:40 PM
  #3  
gaazmon's Avatar
MBWorld Fanatic!
Shutterbug
Liked
Loved
Community Favorite
 
Joined: Aug 2005
Posts: 3,087
Likes: 59
From: Los Angeles
2009 SL550 Roadster Diamond White, 2008 CLK550 Coupe Obsidian Black
Muffler delete is pretty horrendous usually with all the cabin drone at cruising rpm (especially on the highway). I believe the M113 500 doesn't come with resonators on the CL and SL models, just a cross pipe in its place. The stock setup should be 2 primary cats -> 2 secondary cats, cross pipe, 2 mufflers. You can remove the secondary cats with no CEL issues (also should pass smog in most jurisdictions). California passed a law where starting this year they are fining people a $1000 if you have modified exhaust systems that are "too loud" (no longer a $50 fix it ticket) so muffler deletes are somewhat of a gamble out here now.
Reply
Old Jan 17, 2019 | 11:45 PM
  #4  
Blazeracer's Avatar
Thread Starter
Member
 
Joined: Dec 2018
Posts: 131
Likes: 15
2003 SL500
My used mufflers from eBay arrived. Took em to my local exhaust shop, $55 to intall them. The car is a pleasure to ride in now.
Reply
Old Jan 18, 2019 | 10:06 AM
  #5  
Leej's Avatar
Member
 
Joined: Jul 2018
Posts: 171
Likes: 34
From: USA Tennessee
2008 SL550 R230, 2004 E320 W211
@Blazeracer

Glad you got your mufflers worked out.

My mufflers are stock, and I have read about resonator/muffler deletes, but I'm not really interested. If I needed a new exhaust, I would probably consider this:

https://topspeedauto.com/mercedes-be...ad-round-tips/

Dual tips and about $600, and says it will fit the following:
SL500 03-06 with AMG package (clamp on)
SL550 07-12 both base or AMG pacakge (weld on)

Another forum member ( @brentsl550 ) had these on his 2007 SL550 and also had resonator deleted (I don't know if he had AMG package or not), and he had posted some videos here, but the videos are no longer available (or they weren't for me).

A friend's Porsche has a muffler bypass button, and I presume when pressed it simply opens a valve or diverter and bypasses the resonator and goes straight out making it louder and presumably more HP; of course you can press the button again to switch back. I have seen these types of mufflers for other cars, but not on an SL550? Not sure there is room under there, or any real advantage other than being "cool".

Lee
'08 SL550

Last edited by Leej; Jan 18, 2019 at 02:24 PM.
Reply
Old Jan 18, 2019 | 06:11 PM
  #6  
Aussiesuede's Avatar
Senior Member
10 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Jan 2015
Posts: 390
Likes: 115
From: Seattle, WA
SL500 & GL450
Originally Posted by Leej
@Blazeracer

Glad you got your mufflers worked out.

My mufflers are stock, and I have read about resonator/muffler deletes, but I'm not really interested. If I needed a new exhaust, I would probably consider this:

https://topspeedauto.com/mercedes-be...ad-round-tips/

Dual tips and about $600, and says it will fit the following:
SL500 03-06 with AMG package (clamp on)
SL550 07-12 both base or AMG pacakge (weld on)

Another forum member ( @brentsl550 ) had these on his 2007 SL550 and also had resonator deleted (I don't know if he had AMG package or not), and he had posted some videos here, but the videos are no longer available (or they weren't for me).

A friend's Porsche has a muffler bypass button, and I presume when pressed it simply opens a valve or diverter and bypasses the resonator and goes straight out making it louder and presumably more HP; of course you can press the button again to switch back. I have seen these types of mufflers for other cars, but not on an SL550? Not sure there is room under there, or any real advantage other than being "cool".

Lee
'08 SL550
Those devices are called "exhaust diverter valves" or "cutouts". They are simple devices which can be added to pretty much any vehicle for under $200, push-button activation and all.

Electric Exhaust Diverter Valve

Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 01:31 AM.

story-0
New Mercedes-AMG SUVs Arrive With NEW V8 Engine: 12 Things You Need to Know

Slideshow: Mercedes-AMG's updated GLE 63 S and GLS 63 bring a new-generation V8, subtle design revisions, and familiar supercar-rivaling performance figures.

By Verdad Gallardo | 2026-06-17 12:52:51


VIEW MORE
story-1
8 Oddball Mercedes Ideas That Actually Made it to Production

Slideshow: Mercedes has never been afraid to experiment, and some of its strangest ideas turned out to be surprisingly successful.

By Verdad Gallardo | 2026-06-10 17:43:40


VIEW MORE
story-2
Dubai Tuner Gives the Mercedes G-Class An Entirely New Look

Sideshow: A Middle Eastern tuner has transformed the Mercedes-AMG G 63 into an open-top special, replacing nearly every exterior panel in the process.

By Verdad Gallardo | 2026-06-10 15:29:50


VIEW MORE
story-3
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-4
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-5
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-6
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-7
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-8
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-9
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE