Secondary CAT delete
Thread Starter
Super Member
Joined: Jun 2015
Posts: 927
Likes: 33
From: San jose CA.
w205 c400 c63s
Secondary CAT delete
Anyone here deleted secondary CAT without any issues like engine lights on? any difference with sound? am currently using stock performance exhaust.
MBWorld Fanatic!
Joined: Jan 2017
Posts: 1,117
Likes: 182
Mercedes-Benz E63s AMG
... how do you have 557 posts and not know the answer to your questions. 
https://mbworld.org/forums/c63-c63s-...f-exhaust.html
Yes, many have deleted secondary CAT without issues.
Sensors are located before secondary CAT.
25% more sound. "Should have come like this from factory"
https://mbworld.org/forums/c63-c63s-...f-exhaust.html
Yes, many have deleted secondary CAT without issues.
Sensors are located before secondary CAT.
25% more sound. "Should have come like this from factory"
Last edited by skim7x; Oct 2, 2017 at 11:15 PM.
Thread Starter
Super Member
Joined: Jun 2015
Posts: 927
Likes: 33
From: San jose CA.
w205 c400 c63s
... how do you have 557 posts and not know the answer to your questions.
https://mbworld.org/forums/c63-c63s-...f-exhaust.html
Yes, many have deleted secondary CAT without issues.
Sensors are located before secondary CAT.
25% more sound. "Should have come like this from factory"
https://mbworld.org/forums/c63-c63s-...f-exhaust.html
Yes, many have deleted secondary CAT without issues.
Sensors are located before secondary CAT.
25% more sound. "Should have come like this from factory"
Super Member
Joined: Nov 2009
Posts: 601
Likes: 113
2020 GLE 53 AMG
https://mbworld.org/forums/c63-c63s-...f-exhaust.html
Yes, many have deleted secondary CAT without issues.
Sensors are located before secondary CAT.
25% more sound. "Should have come like this from factory"
Yes, many have deleted secondary CAT without issues.
Sensors are located before secondary CAT.
25% more sound. "Should have come like this from factory"
Member
Joined: Jun 2016
Posts: 238
Likes: 23
From: Florida
2017 C63S Coupe 2018 Ford Raptor 2017 Corvette Z06 2013 Mercedes C63 2012 Mercedes C63 BS
Thread Starter
Super Member
Joined: Jun 2015
Posts: 927
Likes: 33
From: San jose CA.
w205 c400 c63s
Trending Topics
Member
Joined: Jun 2017
Posts: 117
Likes: 25
2017 C63S AMG
Sure man. I get it... Sometimes using the search function doesn’t make you feel like your exact question was answered. Been there plenty of times. My two cents is that it’s a worthwhile mod to bide your time til you say F it and get downpipes like I am. If you want, check out my Instagram or YouTube channel for sound checks. @wexlax732
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
Thread Starter
Super Member
Joined: Jun 2015
Posts: 927
Likes: 33
From: San jose CA.
w205 c400 c63s
Sure man. I get it... Sometimes using the search function doesn’t make you feel like your exact question was answered. Been there plenty of times. My two cents is that it’s a worthwhile mod to bide your time til you say F it and get downpipes like I am. If you want, check out my Instagram or YouTube channel for sound checks. @wexlax732
MBWorld Fanatic!
Joined: Sep 2015
Posts: 2,137
Likes: 263
From: Sydney
AMG GLC63 E-Performance Edition 1
Have a look at a few of my videos.
This ones secondary cat delete only
This ones secondary cat delete with software update (multiple pops now)
Best thing I did, it sound great... even better when driving under load!
This ones secondary cat delete only
This ones secondary cat delete with software update (multiple pops now)
Best thing I did, it sound great... even better when driving under load!
Thread Starter
Super Member
Joined: Jun 2015
Posts: 927
Likes: 33
From: San jose CA.
w205 c400 c63s
Have a look at a few of my videos.
This ones secondary cat delete only
https://youtu.be/aaspjIllAUY
This ones secondary cat delete with software update (multiple pops now)
https://youtu.be/SeaOhG3QlE8
Best thing I did, it sound great... even better when driving under load!
This ones secondary cat delete only
https://youtu.be/aaspjIllAUY
This ones secondary cat delete with software update (multiple pops now)
https://youtu.be/SeaOhG3QlE8
Best thing I did, it sound great... even better when driving under load!
MBWorld Fanatic!
Joined: Sep 2015
Posts: 2,137
Likes: 263
From: Sydney
AMG GLC63 E-Performance Edition 1
Oh they are great, the fronts seem to have next to no break dust at all after 2 weeks. Rears are about 50% less then OEM. Best thing... so much easier to clean too.
Member
Joined: Jan 2015
Posts: 93
Likes: 14
From: Florida
18 Benz C63
Anyone in south Florida?
I’ve been to different places. Performance shops and muffler shops. No one is willing to undertake removing the secondary cats. I’ve had shops say they won’t because of emissions and it’s to hard to get to. Also, they won’t be able to get in there to make the cut. Where are you guys getting this done ? Anywhere in South Florida know of a place?
Super Member
Joined: Nov 2009
Posts: 601
Likes: 113
2020 GLE 53 AMG
I had one shop tell me that, but they were inexperienced with the W205 C63S. They looked at the shop manual and thought they had to drop the transmission to do it (which is not true at all).
I ended up getting it done at Eurocharged in Toronto.
South Florida has so many great shops, for sure you should be able to find someone to do it. All they need is a welding torch and a mirror. Hopefully someone here can help recommend a place!
I ended up getting it done at Eurocharged in Toronto.
South Florida has so many great shops, for sure you should be able to find someone to do it. All they need is a welding torch and a mirror. Hopefully someone here can help recommend a place!
Member
Joined: Jun 2016
Posts: 238
Likes: 23
From: Florida
2017 C63S Coupe 2018 Ford Raptor 2017 Corvette Z06 2013 Mercedes C63 2012 Mercedes C63 BS
Gexhaust has done a few cars including mine, not 10/10 work but gets the job done and held the welds. They have 2 locations, one in ft lauderdale area and one in miami
Newbie
Joined: Mar 2020
Posts: 4
Likes: 0
Merc C63S
G'day all, I have a 2017 C63S coupe and I'm based in Australia. I recently undertook the secondary cat delete which made a positive difference in noise (louder) however it has introduced another issue which is a noticable rattle from 2500-3000 in second and third going up through the gears, and 3000-2500 in second and third coming back down.
Given the amount of complaints at the below thread, I am very surprised I didn't read about this potential issue in any of the comments above?
https://mbworld.org/forums/c63-c63s-...s-coupe-3.html
Just a warning for those of you wanting to do the secondary cat delete.
Given the amount of complaints at the below thread, I am very surprised I didn't read about this potential issue in any of the comments above?
https://mbworld.org/forums/c63-c63s-...s-coupe-3.html
Just a warning for those of you wanting to do the secondary cat delete.
MBWorld Fanatic!
Joined: Jul 2011
Posts: 1,146
Likes: 207
2019 AMG GT R
G'day all, I have a 2017 C63S coupe and I'm based in Australia. I recently undertook the secondary cat delete which made a positive difference in noise (louder) however it has introduced another issue which is a noticable rattle from 2500-3000 in second and third going up through the gears, and 3000-2500 in second and third coming back down.
Given the amount of complaints at the below thread, I am very surprised I didn't read about this potential issue in any of the comments above?
https://mbworld.org/forums/c63-c63s-...s-coupe-3.html
Just a warning for those of you wanting to do the secondary cat delete.
Given the amount of complaints at the below thread, I am very surprised I didn't read about this potential issue in any of the comments above?
https://mbworld.org/forums/c63-c63s-...s-coupe-3.html
Just a warning for those of you wanting to do the secondary cat delete.
Newbie
Joined: Mar 2020
Posts: 4
Likes: 0
Merc C63S
Senior Member
Joined: Oct 2019
Posts: 381
Likes: 136
From: AZ
2018 C63S Coupe
We need to meet up after this stupid Pandemic...are you a member of AZ AMG on Facebook???
Junior Member
Joined: Feb 2015
Posts: 39
Likes: 29
From: AZ
2018 C63S
What you driving for your DD?
Would be cool to hear the difference between our cars. I'll join the group right now.
Senior Member
Joined: Oct 2019
Posts: 381
Likes: 136
From: AZ
2018 C63S Coupe
Well it is not really my DD as I drive my AMG when ever I can but my Chevy Trax is mainly for driving to work, when there is bad weather or if I need to haul stuff.
