Cat/less Down Pipes - Feedback Please
Member
Joined: Sep 2016
Posts: 128
Likes: 16
C63S EDITION 1
Has anyone thought about or tried to cut the stock DP with enough lip to have a machine/muffler shop weld some clamp to them. Essential making your stock DP "two piece" that can be put back o in the event you need them, with out dropping the transmission?
Super Member
Joined: Jun 2015
Posts: 927
Likes: 33
From: San jose CA.
w205 c400 c63s
Member
Joined: Jul 2016
Posts: 248
Likes: 13
From: Georgia
C63 s Edition 1 Sedan
Golan from AutoTalent but it was a black Friday deal so... golan@autotalent.com
I live in Ga and in my city there are no smog checks
I live in Ga and in my city there are no smog checks
MBWorld Fanatic!
Joined: Feb 2013
Posts: 1,635
Likes: 25
From: NJ
17 C63 S Coupe
I've heard the PE exhaust paired with DP and I wasn't impressed. It didn't sound smooth or what I normally would I would like to hear. I think my Eisenmann system sounds deeper and smoother under load.
Super Member
Joined: Mar 2016
Posts: 908
Likes: 121
C63S
I just wanted to bring this thread back into discussion as I'm in the market now for tuning to stage 2.
What companies are supplying Right Hand Drive 2 piece dump pipes?
Links, info, pricing and pictures would be great.
What companies are supplying Right Hand Drive 2 piece dump pipes?
Links, info, pricing and pictures would be great.
Member
Joined: Feb 2010
Posts: 99
Likes: 9
c class
Thank you
Super Member
Joined: Oct 2015
Posts: 908
Likes: 133
From: Tampa, FL
'17 AMG S63 Convertible, '17 AMG C63S Edition 1 Coupe
And to piggyback, anyone with catless DPs have any regrets? I've read 1-2 posts about it being raspy and not sounding that nice. And obviously there will be a fuel smell; expected. Wondering if anyone went from high flow cat DP to catless, or visa versa? I'm leaning toward the high flow cat direction, but also like it loud...
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
MBWorld Fanatic!
Joined: Jul 2011
Posts: 1,146
Likes: 207
2019 AMG GT R
And to piggyback, anyone with catless DPs have any regrets? I've read 1-2 posts about it being raspy and not sounding that nice. And obviously there will be a fuel smell; expected. Wondering if anyone went from high flow cat DP to catless, or visa versa? I'm leaning toward the high flow cat direction, but also like it loud...
Super Member
Joined: Oct 2015
Posts: 908
Likes: 133
From: Tampa, FL
'17 AMG S63 Convertible, '17 AMG C63S Edition 1 Coupe
I already have the 2nd cat delete, and it's much louder and throatier than stock, but I'd want it even louder. Not sure what the gains would be from a DP with high flow cat when already having removed my secondary cats...
MBWorld Fanatic!
Joined: Jul 2011
Posts: 1,146
Likes: 207
2019 AMG GT R
with the cat delete do you get those pops and crackles in other driving modes or are those still only in S+?
Super Member
Joined: Oct 2015
Posts: 908
Likes: 133
From: Tampa, FL
'17 AMG S63 Convertible, '17 AMG C63S Edition 1 Coupe
98% of my driving is to and from work, which almost all on the highway. So believe it or not, I rarely ever use Sport+ mode. And Comfort mode with open valves is loud, but not riddled with pops and crackles.
Keep in mind, an open exhaust isn't/shouldn't be what gets you the pops and crackles. What those are are backfires. Excess unburnt fuel dumped into the exhaust after you've let off the throttle. The exhaust is hot, so it ignites, causing an explosion, and hence the loud pops you hear. AMG has simply actually tuned for this to happen. So when you go into Sport+ mode, not only is it a much more aggressive fuel map (for more power), but it allows for that overfuel delivery to allow for the backfires in the exhaust.
Yes, every now and again with hard acceleration followed by unexpected deceleration you may get a pop here and there. But you won't get it without the tuning.
And if you run straight open pipes, there won't be a restriction (cat), so you'll end up with fireballs and even flames (depends on just how much fuel you're burning/wasting).
Keep in mind, an open exhaust isn't/shouldn't be what gets you the pops and crackles. What those are are backfires. Excess unburnt fuel dumped into the exhaust after you've let off the throttle. The exhaust is hot, so it ignites, causing an explosion, and hence the loud pops you hear. AMG has simply actually tuned for this to happen. So when you go into Sport+ mode, not only is it a much more aggressive fuel map (for more power), but it allows for that overfuel delivery to allow for the backfires in the exhaust.
Yes, every now and again with hard acceleration followed by unexpected deceleration you may get a pop here and there. But you won't get it without the tuning.
And if you run straight open pipes, there won't be a restriction (cat), so you'll end up with fireballs and even flames (depends on just how much fuel you're burning/wasting).
