2019 M177 C63s Exhaust Options
Thread Starter
Junior Member
Joined: Sep 2019
Posts: 14
Likes: 1
From: Glendale, CA
2019 C63s Coupe
2019 M177 C63s Exhaust Options
So after going to a few shops, I was informed that my model does not have any secondary cats. Along with not having resonators, all that my car has are mufflers and primary cats.
Does anybody have suggestions as to what I can do to increase the sound of the car? The only options I can think of are catless downpipes or an axleback exhaust system.
Thanks in advance
Does anybody have suggestions as to what I can do to increase the sound of the car? The only options I can think of are catless downpipes or an axleback exhaust system.
Thanks in advance
Senior Member
Joined: Jun 2019
Posts: 272
Likes: 72
From: Los Angeles, CA
2019 C63S Coupe, 2020 G550
So after going to a few shops, I was informed that my model does not have any secondary cats. Along with not having resonators, all that my car has are mufflers and primary cats.
Does anybody have suggestions as to what I can do to increase the sound of the car? The only options I can think of are catless downpipes or an axleback exhaust system.
Thanks in advance
Does anybody have suggestions as to what I can do to increase the sound of the car? The only options I can think of are catless downpipes or an axleback exhaust system.
Thanks in advance
I just had my secondary cats, atleast that's what I was told they were, cut out a couple weeks ago. I seriously doubt they actually cut out my primary cats as (1) theres no smell of gas (2) I have no CEL and (3) the car still isn't that loud.
Maybe they want to convince you to buy something that costs more than just a couple hundred bucks?
I see you're in Glendale, if you want to come down to Culver City I have a place that'll take care of it no problem.
Thread Starter
Junior Member
Joined: Sep 2019
Posts: 14
Likes: 1
From: Glendale, CA
2019 C63s Coupe
Either there are no sensors after the primary cats, which as I understand would be unusual, or you're being lied to.
I just had my secondary cats, atleast that's what I was told they were, cut out a couple weeks ago. I seriously doubt they actually cut out my primary cats as (1) theres no smell of gas (2) I have no CEL and (3) the car still isn't that loud.
Maybe they want to convince you to buy something that costs more than just a couple hundred bucks?
I see you're in Glendale, if you want to come down to Culver City I have a place that'll take care of it no problem.
I just had my secondary cats, atleast that's what I was told they were, cut out a couple weeks ago. I seriously doubt they actually cut out my primary cats as (1) theres no smell of gas (2) I have no CEL and (3) the car still isn't that loud.
Maybe they want to convince you to buy something that costs more than just a couple hundred bucks?
I see you're in Glendale, if you want to come down to Culver City I have a place that'll take care of it no problem.
Yeah Culver City is only about a 30 minute drive, I'd appreciate it!
Senior Member
Joined: Jun 2019
Posts: 272
Likes: 72
From: Los Angeles, CA
2019 C63S Coupe, 2020 G550
Would that not be the secondary cats? Its very possible I had no idea what I was looking at, I'm way out of my depths with this stuff.
But at the same time I hesitate to believe that they cut out my primary cats because of all those reasons I mentioned above. Especially for the fact that I don't think the car would just take having no cats with no problem. Surely there would have to be a check engine light right??
MBWorld Fanatic!
Joined: Nov 2008
Posts: 1,624
Likes: 107
From: SoCal
2018 AMG GTR, 2017 GLS63, 2019 C63s
When you look at MBs diagrams for the 2019 C63s’ exhaust system there’s only one bulge after each manifold and then nothing until the mufflers.
whether there’s a cat or two or a particulate filter, they are all in that one bulge.
whether there’s a cat or two or a particulate filter, they are all in that one bulge.
Senior Member
Joined: Jun 2019
Posts: 272
Likes: 72
From: Los Angeles, CA
2019 C63S Coupe, 2020 G550
That picture doesn't show the cats at all.
What diagram were you able to find? Any site I can find that shows such diagrams has the same image for the 2018 and 2019 and both show two sets of cats.
I'd be really surprised to know I cut so much out and have had no problems at all.
What diagram were you able to find? Any site I can find that shows such diagrams has the same image for the 2018 and 2019 and both show two sets of cats.
I'd be really surprised to know I cut so much out and have had no problems at all.
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MBWorld Fanatic!
Joined: Nov 2008
Posts: 1,624
Likes: 107
From: SoCal
2018 AMG GTR, 2017 GLS63, 2019 C63s
That picture doesn't show the cats at all.
What diagram were you able to find? Any site I can find that shows such diagrams has the same image for the 2018 and 2019 and both show two sets of cats.
I'd be really surprised to know I cut so much out and have had no problems at all.
What diagram were you able to find? Any site I can find that shows such diagrams has the same image for the 2018 and 2019 and both show two sets of cats.
I'd be really surprised to know I cut so much out and have had no problems at all.
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Senior Member
Joined: Jun 2019
Posts: 272
Likes: 72
From: Los Angeles, CA
2019 C63S Coupe, 2020 G550
That seems so bizarre to me.
So not only is there seemingly no particle filter, but there are also no secondary cats. I made a few cuts and I'm running completely catless! lol
