Resonator Delete Completed

tudu

MB Enthusiast
Joined
Jan 2, 2008
Messages
1,203
Location
Plymouth, Devon
Car
05 C200K Sport Edition (Kleemann)
Decided to have resonator removed on C55 this afternoon (after being driven in Steve's SL 500 Silver Arrow), and what a nice deep throaty sound added to the V8. Have kept the secondary cats as to remove them would have been too loud me thinks. Looking forward to hearing the sound after it's settled in a bit and adjusted with the ecu.
 

whitenemesis

MB Club Veteran
SUPPORTER
Joined
May 7, 2007
Messages
16,838
Car
Lexus RC300h F-Sport 2019
Nice one Ozzy! Good to see you're back and modding ;)

How's the C55 been genrally?
 

Gridlock

MB Enthusiast
Joined
Jul 31, 2009
Messages
1,707
Location
Bucks
Car
C43 AMG
What needs doing to the ECU?

I deleted my resonator and it's seemed OK ever since - different engine though.
 

BlackC55

Authorised Forum Sponsor
SUPPORTER
Joined
Feb 8, 2007
Messages
19,538
Location
Portsmouth, Hampshire.
Car
E55K SL500 E300Hybrid E250X3 Viano C55 E450Cab A180 Smart 44 Brabus
It has a large silencer (the yanks possibly call it a resnonator) after the secondy CATS.

Steve's car does sound nice.
 

BaldGuy

MB Enthusiast
Joined
Jun 1, 2002
Messages
4,302
Car
Cayenne Turbo + TVR + Lexus GS430 Sport
Just deleted my secondary CATS prior to my rear main issues... sounds LOVELY and not obtrusive at all... Also took the centre box out on my CLK500 and that sounded better than my 55...
 

Alps

MB Enthusiast
SUPPORTER
Joined
Nov 29, 2002
Messages
7,175
Location
London\Essex
Car
E55 2004 Silver, E63 Weistec AMG(SOLD), E55 2004 Silver(SOLD), C36 AMG 1997 (SOLD)
E55 has taken the centre box out of his, im thinking about doing the same on mine.
 

BTB 500

MB Club Veteran
SUPPORTER
Joined
Aug 7, 2005
Messages
19,074
Location
Berkshire
Car
R129 SL500, W639 Vito 120, S203 C230
I had the centre box removed on my SL some years back ... relatively mild increase in exhaust note.

Of course the mod needs to be declared on insurance.
 
OP
OP
tudu

tudu

MB Enthusiast
Joined
Jan 2, 2008
Messages
1,203
Location
Plymouth, Devon
Car
05 C200K Sport Edition (Kleemann)
Nice one Ozzy! Good to see you're back and modding ;)

How's the C55 been genrally?
Thanks. Car's running great Ollie did great service as usual, and now back negotiating with Kleemann for a kompressor. Not sure i want the K3 kit which includes headers, sports cats, sport camshafts and ECU upgrade (£10,031.52 and thats without install costs) as its far too loud, as already fitted to my C200 sports, so figure on a V8 would sound twice as loud. Hope to see you on the 15th at PCS.
 
OP
OP
tudu

tudu

MB Enthusiast
Joined
Jan 2, 2008
Messages
1,203
Location
Plymouth, Devon
Car
05 C200K Sport Edition (Kleemann)
I don't think 209 CLK55s have resonators - just two sets of cats. :dk:
If you look under your car you should have 2 secondary cats which then goes into a short pipe to a muffler (resonator). It is this that is removed and replaced with a straight piece of stainless steel pipe. Should cost now more than £50.00 to remove and weld new pipe in place. The sound is much deeper, and there is no drone at speed.
 
OP
OP
tudu

tudu

MB Enthusiast
Joined
Jan 2, 2008
Messages
1,203
Location
Plymouth, Devon
Car
05 C200K Sport Edition (Kleemann)
What needs doing to the ECU?

I deleted my resonator and it's seemed OK ever since - different engine though.
Nothing needs doing to the ecu. when messing around with exhaust / mixture as done with removing resonator or secondary cats etc the ecu will automatically adjust, so i am expecting the sound to improve as things settle down.
 
OP
OP
tudu

tudu

MB Enthusiast
Joined
Jan 2, 2008
Messages
1,203
Location
Plymouth, Devon
Car
05 C200K Sport Edition (Kleemann)
Just deleted my secondary CATS prior to my rear main issues... sounds LOVELY and not obtrusive at all... Also took the centre box out on my CLK500 and that sounded better than my 55...
Are you going to PCS GTG on 15th? as i would like to hear your CLK with secondary cats and resonator removed. I am hesitant to remove sec cats at the mo purely because of the noise (don't want it to sound like a barry) and drone at speed on motorway.
 
OP
OP
tudu

tudu

MB Enthusiast
Joined
Jan 2, 2008
Messages
1,203
Location
Plymouth, Devon
Car
05 C200K Sport Edition (Kleemann)
E55 has taken the centre box out of his, im thinking about doing the same on mine.
On the 55 AMG you will notice deeper sound as a V8 should be, without the coarseness of a boy racer car. If you can hear one first that should make your mind up, plus is keep the resonator and put it back on if you don't like it.
 
OP
OP
tudu

tudu

MB Enthusiast
Joined
Jan 2, 2008
Messages
1,203
Location
Plymouth, Devon
Car
05 C200K Sport Edition (Kleemann)
does a cl55 215 have the resonator?
Should think so? look under the car you should see 2 secondary cats, after the cats should be a centre roundish muffler (resonator). If you have that, simple matter of removing and replacing with straight piece of stainless steel pipe at exhaust centre.
 

e55

Active Member
Joined
Jan 22, 2006
Messages
981
Location
Sydney
Car
W211 E55
E55 has taken the centre box out of his, im thinking about doing the same on mine.
I removed the resonator on my old W210 E55 and my current W211 E55. Makes the car sound a bit louder and more like V8. There is minimal or no change in the power output. Just remember to let your insurance company know but they are usually alright with it.
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top Bottom