C63 AMG (W204) 2008 - 2015

Valves in exhaust

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Old 08-19-2010, 04:25 AM
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2011 Ultima GTR
Valves in exhaust

Do we have valves in our standard exhaust?

When enjoying the sound in tunnels, I noticed that after a few winding outs, it gets louder/barkier.

So my point, do we have them? If yes, how do I permanently open them?
Old 08-19-2010, 08:31 AM
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Just keep your foot flat to the floor and don’t ease off for any reason.

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Old 08-19-2010, 09:01 PM
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No we do not have valves, The Chevy Z06 on the other hand, does. I think the Ferrari F430's have it too, im not sure though.
Old 08-19-2010, 09:14 PM
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Originally Posted by _AMG_
No we do not have valves, The Chevy Z06 on the other hand, does. I think the Ferrari F430's have it too, im not sure though.
you are correct... and on the ZO6 if you pull fuse #10, it stays open....
Old 08-19-2010, 09:17 PM
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Originally Posted by NOSONYXC63
you are correct... and on the ZO6 if you pull fuse #10, it stays open....
good to know
Old 08-19-2010, 09:20 PM
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Vath ML63 Brabus C63 SL63 CLK63BS C63BS
My exhaust has some nice big butterfly valves in it
Old 08-19-2010, 10:29 PM
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Interesting, then why does my exhaust get so barky/loud after doing a few 2nd/3rd gear pulls in tunnels?

The first and second pull are never as loud as the following pulls...
Old 08-19-2010, 10:32 PM
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Your ECU is adjusting or your perspective is changing...no valves.
Old 08-19-2010, 10:57 PM
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Grrr, all these "adjusting" ECU's in this car are starting to annoy me. Why can't I just always have the loudest, most aggressive, roughest settings !
Old 08-19-2010, 11:04 PM
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You need some LTS...
Old 08-20-2010, 12:18 AM
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Originally Posted by alqamzi
You need some LTS...
+1
Old 08-20-2010, 03:02 AM
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Excuse my lack of knowledge, LTS?
Old 08-20-2010, 03:53 AM
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Originally Posted by AlexCim
Excuse my lack of knowledge, LTS?
Long Tube Headers

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