W211 AMG Discuss the W211 AMG's such as the E55 and the E63
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Old 09-24-2009, 04:56 PM
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mercedes e55
exhaust

hi guys
Just wanted to know if i remove my 2nd cats and resonator will i loose any bhp or torque or will i gain.
regards
Old 09-24-2009, 05:05 PM
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2005 E55 & 2007 335iC
You wouldn't tell the difference....honestly
Old 09-24-2009, 05:39 PM
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2003 W211 E55, 2003 W220 S600
Make sure you put a crossover in the system close to the headers. I had straight pipes and didnot have a crossover in the system, yes I lost low end torque. Now I put an x pipe in am I have regained the tq I lost
Old 09-24-2009, 06:06 PM
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how much louder is it without secondary cats ? I have xpipe now.
Old 09-24-2009, 07:36 PM
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Originally Posted by e55,,
hi guys
Just wanted to know if i remove my 2nd cats and resonator will i loose any bhp or torque or will i gain.
regards
Just put headers on and you will not have to mess with all those squirrel mods. All the power is made in the first 3 feet after the heads and sound will be great too. Then you don`t have to frankenstien the back half of your AMG exh. for sound and virtually no power gains..
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Old 09-24-2009, 07:44 PM
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agreed but car has plenty of power for me now. Barely get to drive above 60 in this figgin city. So right now I want sound!

So will it ? Yes I am a squirrel modder. Saving dolla$ for wheels
Old 09-25-2009, 12:39 PM
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2005 E55 ///AMG
I understand you do lose some torque in the lower RPM range, but that it comes back in the middle range where you need it more anyway.

You could replace the secondaries with high performance racing cats (AMS posted some ebay auction that sold them pretty cheap) that would net you close to the same sound/performance and should not reduce the lower end torque.

Maybe someone more knowledgable will chime in.
Old 09-25-2009, 01:28 PM
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mercedes e55
Thanks for the replies guys.
I am not too bothered about any gains i just dont want to loose power, I am in need of more sound really.
If i replace the 2nd cats what will happen with sound and power between straight pipes and x pipe?

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