So I got my resonator removed and an xpipe put in....
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From: Khalifonia.
4 wheeled car.
So I got my resonator removed and an xpipe put in....
And I can hardly tell the difference 
Went w/ a 3" pipe. Now going toward the engine, after the resonator, there are two little, what looks like cats (secondary cats I think they're called?). Anybody remove these two? Will it not pass smog? Any issues w/ check engine lights coming on after removing them? Is it going to improve the sound? Right now my car sounds soooo quiet. I want to make it growl more, but I don't want to go aftermarket on the exhaust system really....
Any ideas?
Went w/ a 3" pipe. Now going toward the engine, after the resonator, there are two little, what looks like cats (secondary cats I think they're called?). Anybody remove these two? Will it not pass smog? Any issues w/ check engine lights coming on after removing them? Is it going to improve the sound? Right now my car sounds soooo quiet. I want to make it growl more, but I don't want to go aftermarket on the exhaust system really....Any ideas?
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From: MBworld
bone stock E55 AMG
i also removed resonator and put 3" pipe yesterday...
sound is louder than b4...
u can remove 2nd cat and there's no smog/CEL issue...
it will be louder than resonator delete IMO...
if u want more growl, u may be better off with aftermarket exhaust than 2nd cat delete...
sound is louder than b4...
u can remove 2nd cat and there's no smog/CEL issue...
it will be louder than resonator delete IMO...
if u want more growl, u may be better off with aftermarket exhaust than 2nd cat delete...
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E63 AMG
I did the resonator delete as well and instead of Xpipe I used two 3" stainless Steel pipes and just connect them seperatly. Mine has become noticably louder under load. At idle sounds the same. Once I get over 1k RPM the growl is prominant !
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From: MBworld
bone stock E55 AMG
i ran two 3" separate pipes...
i think mine's tad lower at idle...
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From: orlando/hk/mainland china
2003 e55
yea i did the samething.. resonator delete and 3" pipes replaced the secondary cats.. but i was wondering if the x-pipe would sound louder than my 2 separate pipes.. also.. i dunno if its just me, but i think ive lost a lil bit of torque... and a trick ive figured out with my car.. when u drive it.. drive a bit aggressive for a lil bit, upshift, downshift, rev up.. once the muffler is warmed it.. the exhaust sounds so much more growling and louder
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From: Croydon, England
2004 E55 AMG
After removing the secondary cats, do you get any cabin drone? I've got the resonator delete pipe on the way, and was thinking of removing them too.
My E55 is the family car, and we often spend an hour or so on the motorway.
Had an Eisenmann exhaust on my old BMW E38 740, and that sounded wonderful around town, but was annoying on the motorway.
My E55 is the family car, and we often spend an hour or so on the motorway.
Had an Eisenmann exhaust on my old BMW E38 740, and that sounded wonderful around town, but was annoying on the motorway.
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MBWorld Fanatic!
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From: Chicago, IL
Real Cars
The only way to make the car significantly louder is:
1.) Headers
2.) Mufflers
Changing the piping and deleting things like the resonator are not really going to do anything. The mufflers are the biggest sound restriction, just ask the guys running Eisenmann Race Mufflers. Car sounds insane.
-m
1.) Headers
2.) Mufflers
Changing the piping and deleting things like the resonator are not really going to do anything. The mufflers are the biggest sound restriction, just ask the guys running Eisenmann Race Mufflers. Car sounds insane.
-m
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MBWorld Fanatic!
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From: Kuwait
CLS55 2006, CLS 63S 2015
I have yet to see a full documentation of any exhaust work on a 55 that has shown before and after power. Headers make power yes but I have not seen anything about exhausts/mufflers
Senior Member
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From: Vancouver, BC
2007 S600
i took out my resonator on my 07 e550, and the guy at midas replaced it with 2 straight pipes. it did get a bit louder but it really wasnt the sound i was hoping for. what are you guys planning on doing? are there any other things i can do to improve that sound without going to an aftermarket exhaust system?
MBWorld Fanatic!
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E63 AMG
i took out my resonator on my 07 e550, and the guy at midas replaced it with 2 straight pipes. it did get a bit louder but it really wasnt the sound i was hoping for. what are you guys planning on doing? are there any other things i can do to improve that sound without going to an aftermarket exhaust system?
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From: Houston
2003 W211 E55, 2003 W220 S600
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
thank god someone finally took pics! at least i'm hoping you took pics of the gutting process. i've been waiting for years to see the muffler design.
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From: San Diego
E55
I will upload the pics tonight, then take sound clips this week. Don't want to thread jack so stay tuned for a new thread.
Last edited by Max.H; Mar 5, 2009 at 12:22 AM.
Senior Member
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From: Vancouver, BC
2007 S600
so if i removed my secondary cats, what should i replace it with for best sound? the guy that removed my resonator actually put in straight pipes, but from the sounds of msot of the threads x-pipes have the better sound so im pretty choked about that.
