Cat delete vs Resonator delete
Thread Starter
Super Member
Joined: Dec 2010
Posts: 665
Likes: 0
2010 C63, 2014 E63
Cat delete vs Resonator delete
Hey guys! I've been wanting to modify my exhaust for a while now and I think I'm gonna do it real soon but i don't know what to do. I know that resonator delete makes your car louder but no gains. At the moment i don't care about any gains. I haven't done much research about primary cat delete so can you guys help me out with it?
-Would you notice a change in tone and volume?
-How much gain?
-Which would be better? (primary cat delete vs. resonator delete[straightpipe vs xpipe])
-Would you notice a change in tone and volume?
-How much gain?
-Which would be better? (primary cat delete vs. resonator delete[straightpipe vs xpipe])
MBWorld Fanatic!
Joined: Jul 2009
Posts: 6,677
Likes: 4
From: Los Angeles
C63
If you don't care about gains then go with a resonator delete.
Why would you only delete the primaries?
If your doing that might as well delete both primaries and 2ndaries.
Go with 2ndary cat delete (X pipe) and resonator delete (straight pipe).
Why would you only delete the primaries?
If your doing that might as well delete both primaries and 2ndaries.
Go with 2ndary cat delete (X pipe) and resonator delete (straight pipe).
Last edited by _AMG_; Aug 25, 2011 at 04:43 AM.
Thread Starter
Super Member
Joined: Dec 2010
Posts: 665
Likes: 0
2010 C63, 2014 E63
is that what you have right now?
MBWorld Fanatic!
Joined: Sep 2010
Posts: 1,202
Likes: 8
From: Massachusetts
C63
it doesn't they are not monitored.
I've done this in my car as well. Kind of raspy, really really loud when you stand on it. but quiet for normal driving. If akrapovik wasn't 3300 for just mufflers I'd love to go that route as I think that would take the rasp out.
I've done this in my car as well. Kind of raspy, really really loud when you stand on it. but quiet for normal driving. If akrapovik wasn't 3300 for just mufflers I'd love to go that route as I think that would take the rasp out.
Trending Topics
MBWorld Fanatic!
Joined: Apr 2010
Posts: 1,955
Likes: 7
2017 Mini Cooper S Clubman ALL4 - British Racing Green
By not monitored, I am guessing you mean via the cars internal sensors. What I was talking about was more along the lines of the emissions test that some of us have to take every 2 years (at least in MD, I think VA is every year). Will removal of the cat cause that test to fail... Last time I took the test (about 5 months ago), not only did they connect to the obdII port, but they also shoved a sensor up my exhaust pipe.... that would be my primary worry.
Also, how will it affect the primary cat. They are designed to clean and remove certain particles fromt eh exhaust, there is obviously a reason for the secondary, what that is I do not know, a guess would be so that it gets the last bit of crappy emissions out of the exhaust to pass emissions tests.
Also, how will it affect the primary cat. They are designed to clean and remove certain particles fromt eh exhaust, there is obviously a reason for the secondary, what that is I do not know, a guess would be so that it gets the last bit of crappy emissions out of the exhaust to pass emissions tests.
MB World Stories
The Best of Mercedes & AMG
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
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBWorld Fanatic!
Joined: Sep 2010
Posts: 1,202
Likes: 8
From: Massachusetts
C63
I can't say for sure on the sniffer test. For some strange reason Mass doesn't have one. I'd be willing to bet it would have no problem passing the sniffer with just the primaries in place. Car would probably pass with long tubes and no cats. This is a clean running new engine not an old big block from the 60's.
I did both after listening to sound clips of one or the other and the sound wasn't much different than stock. I only wanted to do this once so just went all or nothing with it.
I did both after listening to sound clips of one or the other and the sound wasn't much different than stock. I only wanted to do this once so just went all or nothing with it.
MBWorld Fanatic!
Joined: Apr 2010
Posts: 1,955
Likes: 7
2017 Mini Cooper S Clubman ALL4 - British Racing Green
I may consider this.. should be a cheap mod to get some serious grunt sound.. And will find out when I go get my emissions test.. I guess I will keep the cats around to be on the safe side to be able to put them back in if I need to. It was weird they did the sniffer test on me this time, because they never did that on my camry (hybrid model) or my wifes FX35 that I took in a while back... I wonder if they do it randomly.. or pick vehicles that would be subject to the gas guzzler tax (I pulled that theory out of my rear.. it is just a guess)
MBWorld Fanatic!
Joined: Sep 2010
Posts: 1,202
Likes: 8
From: Massachusetts
C63
I paid an exhaust shop $200 to remove the secondary cats and resonators, add an x-pipe and straight pipes.
I couldn't see the point in the $600 or $800 they charge for the "special" C63 x-pipe.
I couldn't see the point in the $600 or $800 they charge for the "special" C63 x-pipe.
MBWorld Fanatic!
Joined: Jul 2009
Posts: 6,677
Likes: 4
From: Los Angeles
C63
The $600 X pipes are TIG welded as opposed to MIG. TIG welding process is alot more cleaner and labor intensive then MIG but strength wise I suppose they are about the same unless if the TIG is purge welded.
Super Member
Joined: Mar 2011
Posts: 525
Likes: 0
From: Huntington Beach, CA
c63, 11 e350 (DD)
+1
Here's a couple vids I took last month, I'm happy with the sound so far
http://www.youtube.com/watch?v=bzRvyyBZGMY
http://www.youtube.com/watch?v=BPZ30XtVxNc
Here's a couple vids I took last month, I'm happy with the sound so far
http://www.youtube.com/watch?v=bzRvyyBZGMY
http://www.youtube.com/watch?v=BPZ30XtVxNc
Super Member
Joined: Nov 2010
Posts: 666
Likes: 7
From: Australia
2017 AMG C43
Jeff Is there any droning after resonator delete? I've never really liked the farty sound of the factory exhaust, listening to stangxs video the sound sounds a lot more aggressive than standard. Might be a silly question but where is the resonator located?
MBWorld Fanatic!
Joined: Sep 2010
Posts: 1,202
Likes: 8
From: Massachusetts
C63
with 7 gears there really is no droning if you want to drive quiet it's very easy to do so. The resonator is after the secondary cats before the mufflers it's the larger of the 2 I believe.
Junior Member
Joined: Jun 2010
Posts: 68
Likes: 0
From: Manila, Philippines
09 C63 AMG (Upsolute tuned),00 Porsche GT3 Mk1 , 08 Audi Q7 S-Line 3.0 TDI
Guys, by removing any of these (resonators or cats), will it affect my car's tuning? The tuner guy said not to remove the cats because I will get a cel error. True?
MBWorld Fanatic!
Joined: Sep 2010
Posts: 1,202
Likes: 8
From: Massachusetts
C63
you will not get a cel from removing the secondary cats they are not monitored.
I have no idea about a retune can't really see why you're just allowing the air to pass through the exhaust with less restrictions. you're not adding any air in so not sure why a retune would be required.
