CLK-Class (W209) 2003 on: CLK 270 CDI, CLK 200K, CLK 200 CGI, CLK 240, CLK 320, CLK 350, CLK 500, CLK 550 [Coupes & Cabriolets]

secondary cats

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Old Sep 20, 2010 | 03:20 PM
  #1  
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secondary cats

What do you guys think about me gutting my secondary cats instead of getting rid of them all together? Has anybody else done this? The only reason I'm thinkin of doing it this way is bc it looks like nothing is done so I don't have to deal w warrenty problems
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Old Sep 20, 2010 | 04:15 PM
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Originally Posted by kbahl21
What do you guys think about me gutting my secondary cats instead of getting rid of them all together? Has anybody else done this? The only reason I'm thinkin of doing it this way is bc it looks like nothing is done so I don't have to deal w warrenty problems
what do u mean ? Alot of ppls here deleted their 2nd cats already. I did removed both resonator and 2nd cats last two months.

Andy
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Old Sep 20, 2010 | 06:31 PM
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i've heard that the 2nd cats have sensors on them and when u delete them an error will show on the cluster ...
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Old Sep 20, 2010 | 07:43 PM
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First off, as far as I know...on the CLK550, there are only resonators and no secondary cats. I'm not sure if this is true for all model years, but I know for a fact that my 07 CLK550 only had resonators and no secondary cats.

With that being said, even if your car did have secondary cats, no errors will be shown because the sensors are after the primary cats and before the secondary ones, so it won't affect it.

Just remove all of the resonators and replace with straight pipes, that's what I did and I love the growl my V8 makes now.
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Old Sep 20, 2010 | 08:12 PM
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Originally Posted by kevblah
First off, as far as I know...on the CLK550, there are only resonators and no secondary cats. I'm not sure if this is true for all model years, but I know for a fact that my 07 CLK550 only had resonators and no secondary cats.

With that being said, even if your car did have secondary cats, no errors will be shown because the sensors are after the primary cats and before the secondary ones, so it won't affect it.

Just remove all of the resonators and replace with straight pipes, that's what I did and I love the growl my V8 makes now.


Andy
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Old Sep 20, 2010 | 08:28 PM
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I'm getting my cats removed tomorrow.i was also thinking of getting rid of the resonators,but was not sure about it.i have a magnaflow on there now which is loud enough.i just dont want any droning. M-benz, what kind of muffler do you have? did it make a big difference when you removed the resonators? any droning? thanks.
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Old Sep 20, 2010 | 09:31 PM
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Originally Posted by FastDonzi
I'm getting my cats removed tomorrow.i was also thinking of getting rid of the resonators,but was not sure about it.i have a magnaflow on there now which is loud enough.i just dont want any droning. M-benz, what kind of muffler do you have? did it make a big difference when you removed the resonators? any droning? thanks.
I still have the stock muffler . There is no droning at all . I plan to get the magnaflow and of course with the quad tips.

Andy

Last edited by M-bENZ; Sep 20, 2010 at 09:41 PM.
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Old Sep 20, 2010 | 09:50 PM
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code will only be thrown if you remove primary cats. anything else is fair game. except in CA =\
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Old Sep 20, 2010 | 11:13 PM
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Originally Posted by kevblah
...on the CLK550, there are only resonators and no secondary cats.

That big huge piece closest to the front of the picture was my resonator i am positive about that, i had that deleted a few months ago. The two little things after my pipe bends before it turns into one pipe are my secondary cats. I had a Mercedes certified shop guy check them out and he agreed with me, either way im installing an x-pipe in their place tomorrow morning. BTW this is an 07 CLK550 as well. Sorry about the ****ty cell phone pic btw
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Old Sep 20, 2010 | 11:20 PM
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(sigh)

See this? Look familiar? Underneath my CLK550 when it was stock, same as yours.



The resonator and "cats"




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Old Sep 20, 2010 | 11:21 PM
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ughh im so confused. I hate this crap lol, either way those f***ers r coming out. Thanks tho for letting me know for sure
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Old Sep 20, 2010 | 11:24 PM
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Originally Posted by kbahl21
ughh im so confused. I hate this crap lol, either way those f***ers r coming out. Thanks tho for letting me know for sure
haha not a problem, most people are convinced they're cats because they're shaped like cats. no one believed me when I first said they were resonators in April, either...until I got proof. Tell your Mercedes certified shop guy that he blows.

Here's the original thread:
https://mbworld.org/forums/clk-class...-surprise.html
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Old Sep 21, 2010 | 02:57 PM
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CLS400 4Matic 2016 / ML 350 2009 / clk 320 w209 sold/ sl 500 1996 sold/ cls550 2008 sold
does anyone has an idea or better heard a clk320 with these things removed???? i would like to know if its worth it doing it or it won't change a lot.
thanks
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Old Sep 21, 2010 | 03:06 PM
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Yea, I deleted both and it is worth doing.
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Old Sep 21, 2010 | 03:20 PM
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Originally Posted by dynomite05
Yea, I deleted both and it is worth doing.
hi man, thanks for the info, perhaps you can advise me. with what have you replaced them?? is there original spare parts I should replace with or a "simple" pipe would link everything back?? if there is pics it would be great.
btw how is the sound? does it get close of an quad exhaust or not?
thanks
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Old Sep 21, 2010 | 03:32 PM
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04 CLK 320 > CLK32K
You just replace them with straight pipes. Any reputable muffler shop should be able to do the job. Here is the pic and the vid. Don't mind the ugly pipes, they will be painted black soon.

http://s852.photobucket.com/albums/a...t=IMG_1110.flv


Last edited by dynomite05; Sep 21, 2010 at 03:44 PM.
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Old Sep 21, 2010 | 03:40 PM
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[quote=dynomite05;4261246]You just replace them with straight pipes. Any reputable muffler shop should be able to do the job. Here is the pic and the vid. Don't mind the ugly piepes, they will be painted black soon.

hey dude really thanks for the pic, I was just searchin on youtube if there are any vids and I saw one, I thought I recognized ur car. its not the sound I had in mind, but its better than the stock sound on I guess and sure cheaper than installing a new exhaust to try to have a sound closer to an AMG.
you are really a great helper.
thanks again
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Old Sep 21, 2010 | 03:46 PM
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04 CLK 320 > CLK32K
Yea, you're not going to get the AMG sound but it's better than what we have. It sounds better on the highway opening her up. The video doesn't do it justice.
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Old Sep 21, 2010 | 03:59 PM
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CLS400 4Matic 2016 / ML 350 2009 / clk 320 w209 sold/ sl 500 1996 sold/ cls550 2008 sold
Originally Posted by dynomite05
Yea, you're not going to get the AMG sound but it's better than what we have. It sounds better on the highway opening her up. The video doesn't do it justice.

well still have to the beginin of the month to decide if I delete them or install a new exhaust... just waiting for my salary coz im short this month... hehe
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Old Sep 21, 2010 | 04:00 PM
  #20  
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04 CLK 320 > CLK32K
Delete them and install the exhaust....
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Old Sep 21, 2010 | 04:09 PM
  #21  
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yea well it can be an option just have to find the right exhaust shop and have a cost estimation...
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Old Sep 21, 2010 | 06:05 PM
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Originally Posted by dynomite05
Delete them and install the exhaust....
+1

Originally Posted by michoblb
yea well it can be an option just have to find the right exhaust shop and have a cost estimation...
I feel u brother.... it's hard to find a good exhaust shop in Leb ...
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Old Sep 22, 2010 | 02:40 PM
  #23  
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CLS400 4Matic 2016 / ML 350 2009 / clk 320 w209 sold/ sl 500 1996 sold/ cls550 2008 sold
Originally Posted by ahmadk
+1



I feel u brother.... it's hard to find a good exhaust shop in Leb ...

yeah bro i know...hehehe if i find a good one ill pm u the address and post it here.
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Old Sep 22, 2010 | 06:11 PM
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Originally Posted by michoblb
yeah bro i know...hehehe if i find a good one ill pm u the address and post it here.
u do that... n i'll be very thankful !!
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Old Sep 22, 2010 | 06:27 PM
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lol, just came from getting a quote for the exhaust work and they wanted $600-$700....wow, crazy
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