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Full exhaust options for facelifted 2019 C63S

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Old Aug 14, 2019 | 03:45 PM
  #1  
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Full exhaust options for facelifted 2019 C63S

Have there been any full cat-back exhausts released for the face-lifted C63S? If so, have they gotten rid of the particle filter?

Or has anyone tried removing the secondary cats yet to see if it restores some of the pre-face lift sound?

Another disgruntled '19 C63S owner here, as a former E92 M3 owner - one of the main reasons I got the C63S over the M4 was the sound.. very disappointed in how muted it is. I don't think MB is going to fix it, I'm at the point of just doing the secondary cat delete if no full exhausts are out.
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Old Aug 15, 2019 | 06:49 AM
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This person went the whole hog and deleted cats and filter in their entirety...

View this post on Instagram

I'm debating secondary cats, I've added an ASR module so it's a bit louder lower down at least - highly recommended.
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Old Aug 15, 2019 | 10:11 AM
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First step is to locate where exactly is this infamous GPF located. Then chop it off!
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Old Aug 15, 2019 | 07:11 PM
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Originally Posted by munis
First step is to locate where exactly is this infamous GPF located. Then chop it off!
While I've been researching this issue, I found an old thread that mentions that the "Petrol Particulate Filter" has a build factory code 598. Have folks with US-spec cars checked for this code recently?

Next step, like you said, is finding its physical location and understanding how to remove it without triggering any codes or other bad behavior.
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Old Aug 15, 2019 | 07:34 PM
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Originally Posted by zibby43
While I've been researching this issue, I found an old thread that mentions that the "Petrol Particulate Filter" has a build factory code 598. Have folks with US-spec cars checked for this code recently?

Next step, like you said, is finding its physical location and understanding how to remove it without triggering any codes or other bad behavior.
I agree. I have not yet received my W205 (late Sep build), but I hope to be able to cut this culprit out as long as there is no sensor after the filter. I pulled the secondary cats on my W204 without issues.
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Old Aug 16, 2019 | 12:24 AM
  #6  
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Originally Posted by Spazdoc
I agree. I have not yet received my W205 (late Sep build), but I hope to be able to cut this culprit out as long as there is no sensor after the filter. I pulled the secondary cats on my W204 without issues.
Bingo. In the meantime, I'm going to go drive a '19 here in the near future (as soon as I can). I've driven plenty of pre-LCI C63s. I want to get a firsthand comparison.
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Old Aug 16, 2019 | 02:33 AM
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Originally Posted by Spazdoc
I agree. I have not yet received my W205 (late Sep build), but I hope to be able to cut this culprit out as long as there is no sensor after the filter. I pulled the secondary cats on my W204 without issues.
I don't think no sensors are the get out, as it alters gas flow so requires a remap. Remap voids warranty.
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Old Aug 16, 2019 | 10:04 AM
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AWE track exhaust.
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Old Aug 16, 2019 | 12:13 PM
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Originally Posted by playalistic
This person went the whole hog and deleted cats and filter in their entirety...

I'm debating secondary cats, I've added an ASR module so it's a bit louder lower down at least - highly recommended.
That sounds awesome, do the downpipes replace both the primary and secondary cats (I'm guessing this throws some CEL and needs a tune to keep off?)

Originally Posted by raudiace4
AWE track exhaust.
I'm a fan of AWE exhausts, I don't think they've released one for the facelifted model yet (I could be wrong?)
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Old Aug 16, 2019 | 02:44 PM
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Anyone know if exhaust affects warranty? Nissan were pretty good with the GTR and didn't void it.
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Old Aug 16, 2019 | 05:33 PM
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Originally Posted by SimMB
I don't think no sensors are the get out, as it alters gas flow so requires a remap. Remap voids warranty.
Mercedes spokesperson said ECU would adapt to lower restriction. Technically you should not need any remap for removing PPF. BMWs dont.
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Old Aug 16, 2019 | 07:50 PM
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Originally Posted by zibby43
While I've been researching this issue, I found an old thread that mentions that the "Petrol Particulate Filter" has a build factory code 598. Have folks with US-spec cars checked for this code recently?

Next step, like you said, is finding its physical location and understanding how to remove it without triggering any codes or other bad behavior.
My VIN decode (for MY 2019 C63S) doesn't have this code. In one of the other threads, I remember other folks confirming the same with their 2019s. Are there other codes (for the particulate filter) instead for US-spec cars?
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Old Aug 16, 2019 | 08:10 PM
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Originally Posted by Tuxdude
My VIN decode (for MY 2019 C63S) doesn't have this code. In one of the other threads, I remember other folks confirming the same with their 2019s. Are there other codes (for the particulate filter) instead for US-spec cars?
That was going to be my next question, whether there would be a different code for the US or NA market.

While I was doing some extreme deep-dive research into the issue, I found a comment on social media made by someone in the AMG marketing department about how '19 C43s have the petrol particulate filter as a new part. I currently have an '18 C43 and drove a '19 C43 a few weeks ago. It's definitely a less raucous soundtrack than my '18.

Point being, it seems that filter has infiltrated US-spec LCI C43s.
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Old Aug 16, 2019 | 08:10 PM
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Originally Posted by Tuxdude
My VIN decode (for MY 2019 C63S) doesn't have this code. In one of the other threads, I remember other folks confirming the same with their 2019s. Are there other codes (for the particulate filter) instead for US-spec cars?
@Uga Uga , can you confirm whether this part is on your car or not? I believe you are in the UK...
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Old Aug 16, 2019 | 10:33 PM
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Originally Posted by raudiace4
AWE track exhaust.
I have asked AWE and they said that they don’t have a facelift model to test it on and that it is not the same as the previous models. Armytrix says that their exhaust system works for the facelift model though.
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Old Aug 17, 2019 | 01:42 AM
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Originally Posted by mrguitar
@Uga Uga , can you confirm whether this part is on your car or not? I believe you are in the UK...
Yes I have the infamous PPF

However, I still believe it is LOUDER than the pre
but does not POP and CRACKLE as before, just
under different conditions.

Last edited by Uga Uga; Aug 17, 2019 at 02:35 AM.
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Old Aug 17, 2019 | 02:14 AM
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My car is starting to pop and crackle when driven hard in sport +
Superswiss made that point which I believe is correct.

AMG seem to have reprogrammed the ECU to adapt to your driving
style a lot more than the pre face lift.

So so now selecting sport + or race will not release the full characteristics of those
drive programmes. It will then react to your driving style within the chosen program.

My pre facelift was very difficult to drive smoothly in sport+ in stop and go traffic.
It would lurch forward at the slightest dap of throttle.

The facelift has smoothened the otherwise rough edges of the C63, making it more capable
of putting down power a lot better and improving traction.
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Old Aug 17, 2019 | 02:22 AM
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Originally Posted by munis
Mercedes spokesperson said ECU would adapt to lower restriction. Technically you should not need any remap for removing PPF. BMWs dont.
Will this "spokesperson" speak up for me on warranty claim and does he have the authority to make sure it's still valid?
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Old Aug 17, 2019 | 10:29 AM
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Originally Posted by Uga Uga
Yes I have the infamous PPF

However, I still believe it is LOUDER than the pre
but does not POP and CRACKLE as before, just
under different conditions.
But do you actually have the part number listed in your build? I think that was the real question here at this point.
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Old Aug 17, 2019 | 11:48 AM
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Originally Posted by mrguitar
But do you actually have the part number listed in your build? I think that was the real question here at this point.

You are setting too much precedent on the option code. If Mercedes could make two different exhaust, they would have done two different tunes for Europe and NA as well, and NA cars would have had the pops and crackles. The reason NA cars are quiet tells you they did not bother to change anything. For some reason it is not showing up in the build code, but these cars sure do have the PF installed in them.
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Old Aug 17, 2019 | 11:49 AM
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Originally Posted by SimMB
Will this "spokesperson" speak up for me on warranty claim and does he have the authority to make sure it's still valid?

As long you don't alter the tune of the engine, and decat it, your powertrain warranty will be intact. Only exhaust warranty will be voided. Confirmed by the Mercedes field service manager Brent Prusse, not the dealership.
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Old Aug 17, 2019 | 11:51 AM
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Originally Posted by munis
You are setting too much precedent on the option code. If Mercedes could make two different exhaust, they would have done two different tunes for Europe and NA as well, and NA cars would have had the pops and crackles. The reason NA cars are quiet tells you they did not bother to change anything. For some reason it is not showing up in the build code, but these cars sure do have the PF installed in them.
actually if you read the sub thread on this subject, an option code was discovered and US builds don't seem to have it. we're trying to correlate whether other markets have it based on the option code showing up in their builds, since we know for sure they have it. and this all knowing now that there is most likely one exhaust for all markets (whereas before we did not think this was the case and that AMG only put the PF in the EU markets)...
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Old Aug 18, 2019 | 06:29 AM
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Originally Posted by mrguitar
But do you actually have the part number listed in your build? I think that was the real question here at this point.

Your initial question was do I have the part. Answer was yes

Follow up question requests if part number exists on build sheet, Yes Code 598

Last edited by Uga Uga; Aug 18, 2019 at 06:35 AM.
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Old Aug 18, 2019 | 02:59 PM
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Originally Posted by Uga Uga
Your initial question was do I have the part. Answer was yes

Follow up question requests if part number exists on build sheet, Yes Code 598
ok so this is interesting...UK has the PF build code but US builds do not, yet AMG reps allude to a single exhaust across all markets...do we think there is no PF in the US market or that the factory tune is actually what's the same across all markets? If the latter, one can surmise that the existence of the PF does not have any bearing on the exhaust sound...?
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Old Aug 18, 2019 | 06:26 PM
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Originally Posted by playalistic
This person went the whole hog and deleted cats and filter in their entirety...

https://www.instagram.com/p/BxkbZfvIaCL

I'm debating secondary cats, I've added an ASR module so it's a bit louder lower down at least - highly recommended.
I like those wheels
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