SL55/63/65/R230 AMG: SL55 Deep Exhaust
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From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
SL55 Deep Exhaust
I went to a muffler shop today, they cut out my resonators, and the car sounds just absolutely wonderful, I mean it's just a little bit louder, but a whole lot deeper, I love it. It sounds classy but yeat ballzy. 
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From: Kuwait City, Kuwait
G55, G500 & SLK55
congratulations, just a fact you should get an X-pipe as you obviously lost lower end torque, If I wanted a bit more sound of the oem setup I would remove the front primary cats extended the o2 sensors way back or add headers.
Enjoy!
Enjoy!
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From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
I didn't know removing resonators would make me loose tq, I just talked to vadim, and he said it wouldn't, it's strictly sound related.
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2007 Escalade EXT, Stealth TT 600 AWHP
If you remove some of the restriction of a stock exhaust, you lose torque. Backpressure=exhaust velocity=(scientific exclamation deleted) torque.
Edit: explanation, not exclamation.
Edit: explanation, not exclamation.
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From: Kuwait City, Kuwait
G55, G500 & SLK55
It was discussed in the many topics that are relevant to Resonators and catalytics on the W211 AMG board.
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Thread Starter
Senior Member
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From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
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Benz SL55 AMG, Jag XJR
I straightpiped my XJR and loved it, so I dont think the idea sounds too far fetched. If you had to put a percentage on it, how much louder/deeper would you say it is? Also, which resonator did they cut? I know there are multiple ones under the car.. Ex, 2 cats (front), 1 resonator (mid), 2 mufflers (rear) on the XJR, cant recall whats under the SL55..
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From: Stockholm, Sweden
SL 600 640bhp/1000Nm
I straightpiped my XJR and loved it, so I dont think the idea sounds too far fetched. If you had to put a percentage on it, how much louder/deeper would you say it is? Also, which resonator did they cut? I know there are multiple ones under the car.. Ex, 2 cats (front), 1 resonator (mid), 2 mufflers (rear) on the XJR, cant recall whats under the SL55..
There are only two resonators/mufflers. The two in the back.
The two in the front and the two in the middle is primary and secondary cats.
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From: Sactown, CA
Audi AS4
If back pressure = torque, why don't race engines that achieve max hp/trq try to make back pressure? They don’t. The goal is to flow the exhaust gas out with the most efficiency based on the engine configuration and dump it into the atmosphere as quickly as possible. A good example of this is a F1 exhaust system. Once the exhaust gasses are tuned through the headers to aid the intake, they send it out in the shortest amount of distance with the least amount of resistance. This is one of the biggest misconceptions with engine tuning.
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From: South Carolina
2005 E55 ///AMG
Any drone at interstate speeds? I am thinking of doing this also.
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2005 E55 ///AMG
It already has an H pipe...so no need for an X pipe.
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2005 E55 ///AMG
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From: United Kingdom
SL500 R230
Was referring to this post on it: https://mbworld.org/forums/showthread.php?t=231566
Thanks
David
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From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
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Can't you just take out one of the Cats 1st or 2nd to make it sound deeper? And just a question, which cats would you take out for this modification? Id rather not cut the pipe, just so I can put the cats back in if I don't want it that loud and I just want to cruise on the PCH, you know.
Thread Starter
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Joined: Jan 2008
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From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
Can't you just take out one of the Cats 1st or 2nd to make it sound deeper? And just a question, which cats would you take out for this modification? Id rather not cut the pipe, just so I can put the cats back in if I don't want it that loud and I just want to cruise on the PCH, you know.
