2020 AMG C63s Under Carriage
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Junior Member
Joined: May 2021
Posts: 33
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From: GA
AMG C63s and E300
2020 AMG C63s Under Carriage
Hello,
I just purchased a Certified pre-owned 2020 C63s (facelift) and I noticed that the car wasnt as loud as I expected. I took the car to a muffler shop to see about getting the secondary cats removed ( i should of took pics while it was on the life but forgot to) and it appears that they're already deleted along with the resonator. So I'm trying to get a picture of a 2020 one underneath to see if I'm mistaken.. all Im coming across are the older models. Thanks
I just purchased a Certified pre-owned 2020 C63s (facelift) and I noticed that the car wasnt as loud as I expected. I took the car to a muffler shop to see about getting the secondary cats removed ( i should of took pics while it was on the life but forgot to) and it appears that they're already deleted along with the resonator. So I'm trying to get a picture of a 2020 one underneath to see if I'm mistaken.. all Im coming across are the older models. Thanks
Senior Member
Joined: Jan 2014
Posts: 479
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From: Raleigh, NC
2021 C63S Coupe
Hello,
I just purchased a Certified pre-owned 2020 C63s (facelift) and I noticed that the car wasnt as loud as I expected. I took the car to a muffler shop to see about getting the secondary cats removed ( i should of took pics while it was on the life but forgot to) and it appears that they're already deleted along with the resonator. So I'm trying to get a picture of a 2020 one underneath to see if I'm mistaken.. all Im coming across are the older models. Thanks
I just purchased a Certified pre-owned 2020 C63s (facelift) and I noticed that the car wasnt as loud as I expected. I took the car to a muffler shop to see about getting the secondary cats removed ( i should of took pics while it was on the life but forgot to) and it appears that they're already deleted along with the resonator. So I'm trying to get a picture of a 2020 one underneath to see if I'm mistaken.. all Im coming across are the older models. Thanks
Member
Joined: Oct 2016
Posts: 211
Likes: 56
2020 C63s Coupe
Hello,
I just purchased a Certified pre-owned 2020 C63s (facelift) and I noticed that the car wasnt as loud as I expected. I took the car to a muffler shop to see about getting the secondary cats removed ( i should of took pics while it was on the life but forgot to) and it appears that they're already deleted along with the resonator. So I'm trying to get a picture of a 2020 one underneath to see if I'm mistaken.. all Im coming across are the older models. Thanks
I just purchased a Certified pre-owned 2020 C63s (facelift) and I noticed that the car wasnt as loud as I expected. I took the car to a muffler shop to see about getting the secondary cats removed ( i should of took pics while it was on the life but forgot to) and it appears that they're already deleted along with the resonator. So I'm trying to get a picture of a 2020 one underneath to see if I'm mistaken.. all Im coming across are the older models. Thanks
The place with brackets where you start notice pipe going up is where factory secondary cats are located.
Senior Member
Joined: Jan 2014
Posts: 479
Likes: 122
From: Raleigh, NC
2021 C63S Coupe
Thread Starter
Junior Member
Joined: May 2021
Posts: 33
Likes: 1
From: GA
AMG C63s and E300
Wow, thanks guys mine look exactly like this and I was thinking the previous owner removed them. So the 2020's or the W205's everything is pushed more towards the front it seems. I will take some pics of mine today...
Last edited by dreupnu1; Jun 4, 2021 at 01:47 PM.
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Joined: Apr 2020
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2019 C43
The schematic is correct, the primary and secondary catalytic converters are both attached to the downpipe, which is one long piece. There is a lot of plastic covering this area so it's not very easy to spot.
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Junior Member
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From: GA
AMG C63s and E300
I was afraid of that...I didnt want to replace the dp because then I would need a tune which will void my warranty unless I can somehow have it deleted before the primary but it looks real tedious.
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Junior Member
Joined: Apr 2020
Posts: 39
Likes: 17
2019 C43
You can still do a secondary cat delete or catted downpipes from ModalWorks or RedStar. These two options would not require a tune. However, your dealer might void your warranty so its up to you.
I am going through the same dilemma on my 2021 C63s :/
I am going through the same dilemma on my 2021 C63s :/
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Junior Member
Joined: May 2021
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From: GA
AMG C63s and E300
Did a secondary cat delete and its louder with a deeper growl but no pops and crackles. It struggles like it wants to but is muffled...so I wondering if I should replace the mufflers now with AWE valve control. The last option is to go with down pipes but dropping the tranny and tune I need a reliable experienced shop.
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Joined: Oct 2016
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2020 C63s Coupe
Did a secondary cat delete and its louder with a deeper growl but no pops and crackles. It struggles like it wants to but is muffled...so I wondering if I should replace the mufflers now with AWE valve control. The last option is to go with down pipes but dropping the tranny and tune I need a reliable experienced shop.
My car (FL 2020) pop and crackle a lot in RACE mode but not so much in Sport+ mode.
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Joined: Oct 2016
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2020 C63s Coupe
How many miles on your car?
AMG performance exhaust (after downpipe section) is already pretty good free flowing system. You won't notice much difference by installing AWE valved exhaust.
You can try exhaust valve simulator such as Renntech EVM to keep the exhaust flap fully open to bring out the maximum sound from factory exhaust system.
AMG performance exhaust (after downpipe section) is already pretty good free flowing system. You won't notice much difference by installing AWE valved exhaust.
You can try exhaust valve simulator such as Renntech EVM to keep the exhaust flap fully open to bring out the maximum sound from factory exhaust system.
Thread Starter
Junior Member
Joined: May 2021
Posts: 33
Likes: 1
From: GA
AMG C63s and E300
How many miles on your car?
AMG performance exhaust (after downpipe section) is already pretty good free flowing system. You won't notice much difference by installing AWE valved exhaust.
You can try exhaust valve simulator such as Renntech EVM to keep the exhaust flap fully open to bring out the maximum sound from factory exhaust system.
AMG performance exhaust (after downpipe section) is already pretty good free flowing system. You won't notice much difference by installing AWE valved exhaust.
You can try exhaust valve simulator such as Renntech EVM to keep the exhaust flap fully open to bring out the maximum sound from factory exhaust system.
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Joined: Dec 2020
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none
Did a secondary cat delete and its louder with a deeper growl but no pops and crackles. It struggles like it wants to but is muffled...so I wondering if I should replace the mufflers now with AWE valve control. The last option is to go with down pipes but dropping the tranny and tune I need a reliable experienced shop.
are you getting any gas smell inside the car after you took out the secondary cats?
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Junior Member
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Posts: 33
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From: GA
AMG C63s and E300
No CEL's or anything. The sensors I believe are near the Primaries, so thats why a tuned is recommended. Im hearing different stories on the warranty...some will say it will void the exhaust system warranty but not the rest of the car if a problem arises that has nothing to do with the exhaust.
