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Removing Backboxes

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Old Sep 12, 2016 | 04:48 AM
  #1  
kimeran's Avatar
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2012 C63 AMG, 1991 325iS. Ex: 2011 C63 P31
Removing Backboxes

Hi guys

Apologies if a similar thread exists, couldn't find anything.

I am looking at removing the backboxes on my car.
I have already removed the secondary cats and resonators, still don't think its loud enough though.

So my question is, will removing the backboxes have any negative effect on performance?
I'm not looking at gaining any power, just want it to be louder.
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Old Sep 12, 2016 | 09:04 AM
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What is a "blackbox?"
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Old Sep 12, 2016 | 09:25 AM
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Backboxes = mufflers. I only know that from watching Wheeler Dealers.
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Old Sep 12, 2016 | 10:27 AM
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Originally Posted by kimeran
Hi guys

Apologies if a similar thread exists, couldn't find anything.

I am looking at removing the backboxes on my car.
I have already removed the secondary cats and resonators, still don't think its loud enough though.

So my question is, will removing the backboxes have any negative effect on performance?
I'm not looking at gaining any power, just want it to be louder.
Yes will get louder. Better to get headers.
Reply
Old Sep 12, 2016 | 11:02 AM
  #5  
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Originally Posted by chrisridebike8
Backboxes = mufflers. I only know that from watching Wheeler Dealers.
Interesting. Good to know. Never heard of a muffler called a blackbox.
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Old Sep 12, 2016 | 11:12 AM
  #6  
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From: Eufaula, Al/Georgetown, GA
W213 E63S Wagon, W204 C63 P30(RIP), WK1 Grand Cherokee SRT8(RIP)
Originally Posted by kimeran
Hi guys

Apologies if a similar thread exists, couldn't find anything.

I am looking at removing the backboxes on my car.
I have already removed the secondary cats and resonators, still don't think its loud enough though.

So my question is, will removing the backboxes have any negative effect on performance?
I'm not looking at gaining any power, just want it to be louder.
I have had my backboxes off for over a year and wouldn't have it any other way....fyi, take out the boxes, put the resonators back on and enjoy life!!! The volume is great but you want the resonators back in place because they are actually what provide that AMG bark....no seconds, resos then no mufflers sounds like liquid sex IMHO
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Old Sep 12, 2016 | 11:27 AM
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Originally Posted by jmueller
Interesting. Good to know. Never heard of a muffler called a blackbox.
BACKbox. Not BLACKbox. Blackboxes are in airplanes.
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Old Sep 12, 2016 | 11:52 AM
  #8  
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Originally Posted by chrisridebike8
BACKbox. Not BLACKbox. Blackboxes are in airplanes.
Fail. Sorry. Should have had my coffee before reading this thread.
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Old Sep 13, 2016 | 05:14 AM
  #9  
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Hahaha Thanks guys

I sadly can't put the resonators back, because I kept the standard housing and just emptied out the insides

Mainly worried about losing any sorts of power
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Old Sep 13, 2016 | 09:57 AM
  #10  
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w204 c63
Just buy some new resonators.

Without the secondary cats, resonators, or the mufflers it's probably going to be way to raspy and I'm guessing you'll have a good amount of drone too

Last edited by marcadelic; Sep 13, 2016 at 10:18 AM.
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Old Sep 13, 2016 | 11:23 AM
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Originally Posted by chrisridebike8
Backboxes = mufflers. I only know that from watching Wheeler Dealers.
hahahahahaha! Yes!
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