second cats - MBWorld.org Forums

01-27-2014, 10:34 PM

#1

BlackB-Wald

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E350 4matic, Porsche Cayenne S

second cats

Hey guys, does anyone know if I delete the second catalytic and put a custom free flow catalytic, will the engine light on?

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01-28-2014, 07:46 AM

#2

StarvingArtist

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CLS 55 AMG E500 99 ML320

I don't think so, there's no sensor after the second cats. Full delete won't even throw a code.

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01-28-2014, 09:47 AM

#3

1SickCLS

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CLS55 AMG

why would you delete the secondary cats to add more cats?

Just delete them and do an x pipe

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01-29-2014, 12:11 AM

#4

BlackB-Wald

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E350 4matic, Porsche Cayenne S

Hey guys,
so yeah, I didn't add more cats. I made it straight instead of X pipe. And just done it today. Well, it sounds cool on high rpm and stay quite at low rpm. And yeah, no check engine light was on.

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02-19-2014, 04:38 AM

#5

kj217

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W211 E63

Quote:

Originally Posted by BlackB-Wald

Hey guys,
so yeah, I didn't add more cats. I made it straight instead of X pipe. And just done it today. Well, it sounds cool on high rpm and stay quite at low rpm. And yeah, no check engine light was on.

any power gain?
can you share some pics of the new setup?

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02-21-2014, 04:57 AM

#6

BlackB-Wald

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E350 4matic, Porsche Cayenne S

i don't know if there's any significant power gain. Well, I don't think I can take any picture of it. But let's see if later on I decide to make a custom smaller resonator, I might be able to share the picture for you.

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