SL55 AMG, SL63 AMG, SL65 AMG (R230) 2002 - 2011 (2003 US for SL55 and 2004 for the SL65)

SL55/63/65/R230 AMG: What did you cut off on your OEM SL55 Exhaust for better sound? Diagram Inside

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Old Dec 25, 2010 | 06:04 PM
  #26  
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First I had cut 158, not enough... then the 159 and then I was able to tell a difference- sounds great, no drone and no check engine light unless you mess around with the cats
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Old Jan 1, 2011 | 02:21 AM
  #27  
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I absolutely love the sound of the stock 63 engine, and is exactly what I would like my SL55 to sound like. Can anyone compare the sound of cutting off 158 and 159 compared to a stock 63 engine?

And when you guys say you remove these pieces, do you have to replace it with something?
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Old Jan 1, 2011 | 01:38 PM
  #28  
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Originally Posted by Broker
I absolutely love the sound of the stock 63 engine, and is exactly what I would like my SL55 to sound like. Can anyone compare the sound of cutting off 158 and 159 compared to a stock 63 engine?

And when you guys say you remove these pieces, do you have to replace it with something?

if you cut out 159 and 158..your car should sound alot better.
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Old Apr 25, 2011 | 05:17 PM
  #29  
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Originally Posted by kamilclk430
Ok guys, I've been doing a lot of reading, and cant put a picture on what some people change out on their OEM exhuasts. Obviously I want something that wont give me a Check Engine light. I replaced #159 with SS 3.5inch pipe. What else are you guys doing?

I have 159s removed, sounds great.
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Old Apr 25, 2011 | 07:44 PM
  #30  
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Originally Posted by Broker
I absolutely love the sound of the stock 63 engine, and is exactly what I would like my SL55 to sound like. Can anyone compare the sound of cutting off 158 and 159 compared to a stock 63 engine?

And when you guys say you remove these pieces, do you have to replace it with something?
I am just seeing your post so if you already got your answer then disregard please. the short answer to your question is yes. depending on what you remove like in cristian's post regarding the res delete (#159).

I removed the secondary cats (#158) and welded in a piece of 3" stainless steel "U" bend. If you look at the diagram carefully, you can see how the "U" bend can be cut nearly in half (slightly off center) to link in where the secondaries were. I had a local muffler shop do it for me. No CELs with the secondaries removed.

By the way, nothing you do to the 55k exhaust system will make it sound like an NA 6.3 motor IMHO.
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Old Apr 25, 2011 | 08:49 PM
  #31  
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158, 159 removed - sounds great - not to obscenely loud but sounds boss at WOT.
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Old Apr 27, 2011 | 12:44 PM
  #32  
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^^^ No drone at cruising speeds? Some LTHs would be nice to finish out the exhaust modes.
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Old Apr 27, 2011 | 12:53 PM
  #33  
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Originally Posted by cal1
^^^ No drone at cruising speeds? Some LTHs would be nice to finish out the exhaust modes.
When your used to a 430 with tubi and straight pipes......this is tame

I have officially banned myself from doing any more mods - going to move to the 65.

Have you got the LTH?
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Old Apr 27, 2011 | 04:01 PM
  #34  
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Originally Posted by iAMGod
When your used to a 430 with tubi and straight pipes......this is tame

I have officially banned myself from doing any more mods - going to move to the 65.

Have you got the LTH?
No... I went with EvoSport shorty ceramic coated back when there weren't tons of good LTH around and they had to be fitted, cut, welded and maybe CEL issues so on and so forth. The shortys bolted on and work good, but if I had it to do over again, LTH would have been the way to go.

I'll bet that 430 sounded angry!!!
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Old Apr 27, 2011 | 04:36 PM
  #35  
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Originally Posted by cal1
No... I went with EvoSport shorty ceramic coated back when there weren't tons of good LTH around and they had to be fitted, cut, welded and maybe CEL issues so on and so forth. The shortys bolted on and work good, but if I had it to do over again, LTH would have been the way to go.

I'll bet that 430 sounded angry!!!
I see - sounds like significant amount of work - but your car sounds very nice.

Yes angry is a good way of describing it....check out the clips in the sig you will see
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Old Apr 27, 2011 | 09:11 PM
  #36  
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Just finishing up.

Bruce at TTM had done work on another SL55 which I heard and it sounded AWESOME! He is finishing mine up tomorrow. He suggested headers which includes removing the primary cats (157), stepped up the pipe to 3" into an X pipe (which replaces b) , removed the secondary cats (158) and ran the 3" pipe to the resonators (159). Decided to keep the resonators to elliminate any droning. The system sounds fantastic when you get on it and just right when your taking the wife to dinner. If you can get to see Bruce, I highly recommend it, great job and the welding is second to none. I'm sure he is going to get some pictures up on the thread.
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Old Apr 28, 2011 | 08:45 AM
  #37  
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Originally Posted by iAMGod
I see - sounds like significant amount of work - but your car sounds very nice.

Yes angry is a good way of describing it....check out the clips in the sig you will see
I just checked out the vids. Pretty "F" ing awesome. Truly exotic sounding to me with a bit of anger to boot.
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Old Apr 28, 2011 | 07:33 PM
  #38  
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Originally Posted by cal1
I just checked out the vids. Pretty "F" ing awesome. Truly exotic sounding to me with a bit of anger to boot.

You have good taste my friend.
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Old Jul 5, 2011 | 09:36 PM
  #39  
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Here is 158 and 159 cut out from the original exhaust I will try to get a better video tonight from a parking garage

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Old Jul 5, 2011 | 09:42 PM
  #40  
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if the video above does not work here is a link to the youtube vid http://youtu.be/D1h5GNxlNDw
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Old Jul 7, 2011 | 08:37 AM
  #41  
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Bye Bye 158's....

I just had my 158's removed yesterday and replaced with straight pipes, honestly I felt bad cutting out an AMG part but with the removal of those secodary cats it gave the car a deeper growl on WOT. As for start up, idiling and cruising there is no major difference unless you really know the sound of the car and pay close attetion. So far I am very pleased with the sound but did not feel any performance gain or loss as of yet....
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Old Jul 8, 2011 | 02:47 AM
  #42  
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Originally Posted by kamilclk430
if the video above does not work here is a link to the youtube vid http://youtu.be/D1h5GNxlNDw
Your plate.....
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Old Jul 10, 2011 | 08:35 PM
  #43  
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Has anyone been brave enough to cut off 158, 159 AND 160?

What about 159 and 160?

I really like the stock SL55 tone as it is...but seeing this video makes me think about exhaust mods:

http://www.youtube.com/user/lamb2u#p/a/u/1/wd3Tfq2JlG0
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Old Jul 10, 2011 | 10:22 PM
  #44  
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Originally Posted by kamilclk430
Here is 158 and 159 cut out from the original exhaust I will try to get a better video tonight from a parking garage

That sounds mean as hell!
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Old Jul 11, 2011 | 10:26 AM
  #45  
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Originally Posted by OUTCAST
That sounds mean as hell!
Thank You I love it as well
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Old Jul 11, 2011 | 04:36 PM
  #46  
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Originally Posted by LukasBMW
Has anyone been brave enough to cut off 158, 159 AND 160?

What about 159 and 160?

I really like the stock SL55 tone as it is...but seeing this video makes me think about exhaust mods:

http://www.youtube.com/user/lamb2u#p/a/u/1/wd3Tfq2JlG0
I would be afraid of a muffler delete as well as secondaries and res would make the car sound like the next door neighbor kids Mustang GT. The beauty (at least to me) of the more subtle exhaust deletes is you get a close to stock sound at idle and low throttle, but at WOT she announces that she truly is a beast.

By the way, the link is of my SL. The sound is the result of shorty headers (evoSport) and a secondary kitty delete (158). I think the SC whine is thanks to the 180 counter pulley.
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Old Jul 18, 2011 | 03:13 PM
  #47  
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COLD START VIDEO

http://youtu.be/q5ZhtHXW_IA
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Old Jul 18, 2011 | 04:01 PM
  #48  
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Originally Posted by kamilclk430


It just sounds so mean with that deep growl. Can't wait to get the secondary cats removed from mine. Any more videos to share?
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Old Jul 18, 2011 | 04:33 PM
  #49  
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Originally Posted by Brent72
It just sounds so mean with that deep growl. Can't wait to get the secondary cats removed from mine. Any more videos to share?
Thanks

Yea I will take another video in a parking garage so it will give more sound off.
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Old Jul 18, 2011 | 05:07 PM
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Originally Posted by kamilclk430
Thanks

Yea I will take another video in a parking garage so it will give more sound off.

Great. I'm looking forward to hearing that one.
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