I ned to take a video....sounds AMAZING
Resonator / Secondary Cat Delete
Thread Starter
Super Member
Joined: Aug 2012
Posts: 748
Likes: 1
From: Dubai
C63 AMG
Resonator / Secondary Cat Delete
Hey guys,
I did a resonator delete and replaced it with straight stainless steel pipes, it was loud but only at times and certain revs and when the foot was placed hard on the accelerator pedal.
I then wanted more sound so deleted the secondary cats and replaced it with an X pipe. That seems to have added a tiny bit more power but the problem is, while the noise is more constant, it's definitely more refined although also loud. Just a different kind of loud.
I want the burble that you get when downshifting in certain gears and I want a flat out loud sound when driving between 2000 and 5000 revs - other than a primary cat delete, what can be done?
Thanks for any advice.
I did a resonator delete and replaced it with straight stainless steel pipes, it was loud but only at times and certain revs and when the foot was placed hard on the accelerator pedal.
I then wanted more sound so deleted the secondary cats and replaced it with an X pipe. That seems to have added a tiny bit more power but the problem is, while the noise is more constant, it's definitely more refined although also loud. Just a different kind of loud.
I want the burble that you get when downshifting in certain gears and I want a flat out loud sound when driving between 2000 and 5000 revs - other than a primary cat delete, what can be done?
Thanks for any advice.
Last edited by C-63AMG; Jan 25, 2013 at 04:30 PM.
MBWorld Fanatic!
Joined: Nov 2011
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2012 C63 2015 C300 sport
MBWorld Fanatic!
Joined: Mar 2007
Posts: 2,155
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From: Sydney, Australia
Vath ML63 Brabus C63 SL63 CLK63BS C63BS
Get rid of xpipe and have straight pipe in place of secondary cats and resonator. Ita the xpipe that screws up the note. Worked a treat on my C63 black series
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Junior Member
Joined: Mar 2013
Posts: 47
Likes: 0
2012 Mercedes Benz c63
Sick vids! But I need to hear primary and secondary cat delete with resonators ,I got an xpipe deleting second cats and resonator but I don't wanna do something and then regret it ,sick car
MBWorld Fanatic!
Joined: Mar 2012
Posts: 4,026
Likes: 7
From: Walnut Creek, CA
Vivid Racing '09 C63 AMG
Oh, got it. I thought you ALSO wanted to hear a resonator delete, not WITH resonators still there. I have to admit, it's pretty loud. Under moderate throttle, the cabin drone is very noticeable with this setup. I'm used to it and I like it, but sometimes it's a challenge to take phone calls or drive around my gf's parents.
Thread Starter
Super Member
Joined: Aug 2012
Posts: 748
Likes: 1
From: Dubai
C63 AMG
Did my secondary cats with straights and removed the x pipe. Damn it's SO fuggin LOUD.
Really nice and really happy with it but one thing I notice is that it's a bit high pitched but for $130 I am not complaining.
Really nice and really happy with it but one thing I notice is that it's a bit high pitched but for $130 I am not complaining.
Senior Member
Joined: Feb 2012
Posts: 332
Likes: 4
From: Charlotte
2012 C63; 2011 E350 Coupe
Got a question. I'm new to the C63 world. I've read that there appears to be four cats on the C63. Correct? By removing two of them, as in the secondaries, will the car pass state emissions inspection? I'd like a little more volume, but not too overwelming.
I've not yet been under the car, so I have no idea how it's configured.
I've not yet been under the car, so I have no idea how it's configured.
MBWorld Fanatic!
Joined: Mar 2012
Posts: 4,026
Likes: 7
From: Walnut Creek, CA
Vivid Racing '09 C63 AMG
Yes, you only need one set of cats to pass smog, at least in California. I have no cats and I just dropped in a couple of 200 cell high-flow cats and that was good enough for the sniffer.
Senior Member
Joined: May 2012
Posts: 402
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From: Chicago, IL
C63
Primary and Secondary Cat delete. I left the resonators on.
I've got the MBH headers, 3 in straight pipes, and x-pipe.
Super Member
Joined: Jan 2010
Posts: 639
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From: SoCal, Orlando/Miami FL USA, Japan
2012 C63 AMG BS, 2010 DUCATI 1198S
I'm thinking about MBH headers with cats, X-pipe to replace secondary cats, and straight pipes to replace resonators.
