Exhaust setting advice please! Shall I remove scondary cat and H pipe ? W211 E63.
Thread Starter
Senior Member
Joined: Mar 2012
Posts: 325
Likes: 3
From: SF Bay Area
08 E63 AMG
Exhaust setting advice please! Shall I remove scondary cat and H pipe ? W211 E63.
hi ~
I am thinking of removing the stock H pipe and secondary cats on my
w211 E63 amg and place a x pipe to reduce back pressure .
However I wasnt sure if putting X pipe is the right thing .
As of now the only thing that is done to my stock exhaust setup is
removing resonator and replaced it with two pipes.
Also I live in California , is removing secondary cat allowed???
Any advice is deeply appreciated ! Thank you .
I am thinking of removing the stock H pipe and secondary cats on my
w211 E63 amg and place a x pipe to reduce back pressure .
However I wasnt sure if putting X pipe is the right thing .
As of now the only thing that is done to my stock exhaust setup is
removing resonator and replaced it with two pipes.
Also I live in California , is removing secondary cat allowed???
Any advice is deeply appreciated ! Thank you .
Last edited by nysid2007; Mar 29, 2012 at 07:19 AM.
MBWorld Fanatic!
Joined: Jul 2009
Posts: 6,677
Likes: 4
From: Los Angeles
C63
Putting an X pipe will help balance out exhaust flow from left and right header banks.
I would remove the resonators and add straight pipes and replace the 2ndary cats with an X pipe.
Removing 2ndary cats wouldn't be illegal as long as the primary cats are still intact.
I removed my 2ndary cats and live in C.A. also.
I would remove the resonators and add straight pipes and replace the 2ndary cats with an X pipe.
Removing 2ndary cats wouldn't be illegal as long as the primary cats are still intact.
I removed my 2ndary cats and live in C.A. also.
Thread Starter
Senior Member
Joined: Mar 2012
Posts: 325
Likes: 3
From: SF Bay Area
08 E63 AMG
Putting an X pipe will help balance out exhaust flow from left and right header banks.
I would remove the resonators and add straight pipes and replace the 2ndary cats with an X pipe.
Removing 2ndary cats wouldn't be illegal as long as the primary cats are still intact.
I removed my 2ndary cats and live in C.A. also.
I would remove the resonators and add straight pipes and replace the 2ndary cats with an X pipe.
Removing 2ndary cats wouldn't be illegal as long as the primary cats are still intact.
I removed my 2ndary cats and live in C.A. also.
Also how much did it cost you ?? I already removed my resonator for $80 at a
local muffler shop. I heard it a bit more than taking out a resonator.
Also Im going for a long tube headers from Kleeman . When I install this
header do I need to remove my x pipe again where my secondary cats are?
Cause if I have to take out the xpipe again , I might as well just wait till
I get my header and then put the x pipe where my stock resonator use to be.
I dont want to wast my money over and over so.
MBWorld Fanatic!
Joined: Jul 2009
Posts: 6,677
Likes: 4
From: Los Angeles
C63
Hey !! Thank you sir !!
Also how much did it cost you ?? I already removed my resonator for $80 at a
local muffler shop. I heard it a bit more than taking out a resonator.
Also Im going for a long tube headers from Kleeman . When I install this
header do I need to remove my x pipe again where my secondary cats are?
Cause if I have to take out the xpipe again , I might as well just wait till
I get my header and then put the x pipe where my stock resonator use to be.
I dont want to wast my money over and over so.
Also how much did it cost you ?? I already removed my resonator for $80 at a
local muffler shop. I heard it a bit more than taking out a resonator.
Also Im going for a long tube headers from Kleeman . When I install this
header do I need to remove my x pipe again where my secondary cats are?
Cause if I have to take out the xpipe again , I might as well just wait till
I get my header and then put the x pipe where my stock resonator use to be.
I dont want to wast my money over and over so.
Resonator delete cost me $90 and I have the MBH X pipe which was around $680. However, your muffler shop can install a universal X pipe for WAY cheaper.
The Kleeman headers are actually shorties that come with HFC's. There is cutting and welding involved (cut is made right before the primary cats) when installing the Kleeman headers with HFC's.
No, you wouldn't have to remove your X pipe becuase the Kleeman setup only replaces the oem log manifolds and replaces the primary cats with HFC's.
Member
Joined: Feb 2009
Posts: 237
Likes: 6
From: Bay Area
mercedes cls63
So what was the final setup you decided to go with. How it's sound and any sound clip? Mind me asking which muffler shop you went with? Kind of in the same boat as you,doing headers and exhaust .thanks.
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