Long tube headers loudness ( x-pipes would help ? )

Mar 28, 2013 | 10:03 AM

trackmaniak

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Junior Member

Joined: Mar 2011

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From: Montreal, Canada

2012 C63 Black Series ( red )

Long tube headers loudness ( x-pipes would help ? )

HI guys,
I had long tube headers and airbox Installed on the car ...
The sound Is a little too much for me ...
I was told adding the X-pipe would tone It down 20-25%
... Is there anyone here who experienced "before" and "after" the x-pipes ...
Does It really help and Is 20-25% realistic

Thanks In advance,

Cheers

Dominic

Mar 28, 2013 | 10:15 AM

jrcart

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Joined: Jan 2008

Posts: 6,621

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From: Naperville, IL/Chicago

2008 CLK63 Black Series 2012 C63 Black Series 2014 SLS Black Series

Need some more info, are you running primary cats or a cat delete? If you are running cats are they stock or high flow? Secondary cats or resonators? I run long tubes on both of my BS's with cat delete, x-pipe and high flow resonators, they are loud but not obnoxious IMO, only at WOT are they obnoxious. I have heard cars with no cats and no resonators and they are obnoxious

Mar 28, 2013 | 10:16 AM

xtyper

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Joined: Jul 2009

Posts: 1,196

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From: SoCal

2013 E63 AMG

I've done the before and after x-pipe on MBH longtube headers with catless mids. I would say the noise "tone down" is more like 10%, not 20-25%. It helps a bit, but if it's too loud for you now, odds are it still will be with an x-pipe.

Mar 28, 2013 | 10:41 AM

Maverick1975

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From: Sydney, Australia

Vath ML63 Brabus C63 SL63 CLK63BS C63BS

Quote:

Originally Posted by xtyper

Agreed, long tubes plus hiflow cats is still very loud. X-pipes and or h-pipes will mitigate a fraction but not enough to alleviate the barbaric noise, giant resonators will help and perhaps two sets of mufflers per side. Catless is sheer lunacy! I kind of regret going the longtube route with supercharger. Got oodles of power with supercharger alone but now cars are so loud that I am afraid to exploit the throttle in suburban areas as it is almost embarrassingly loud. Only true enthusiasts appreciate it. To everyone else on the road you are simply an annoying obnoxious dikhead. I am still experimenting with ways to tone down my cars and have almost decided to go back to the old log manifolds!!

Last edited by Maverick1975; Mar 28, 2013 at 10:46 AM.

Mar 28, 2013 | 10:47 AM

Blown63

Super Member

Joined: Jan 2011

Posts: 666

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2015 CLS63 S-AMG

Here is a link, I am not sure if Merc63 still has these available but there are sound clips showing the difference.

https://mbworld.org/forums/c63-amg-w...ip-follow.html

Mar 28, 2013 | 11:28 AM

Merc63

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Joined: Jan 2009

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C63 AMG

X pipe will remove the obnoxiousness from the sound. It's 100x better with an xpipe.

Cold starts are much quieter and it still sounds awesome just not as crazy loud.

Mar 28, 2013 | 11:43 AM

trackmaniak

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Joined: Mar 2011

Posts: 22

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From: Montreal, Canada

2012 C63 Black Series ( red )

I ordered the x-pipe from MHP ... I'm waiting for them
They said It would be 20-25% quieter,
For yourself, was It that much ? Or like others ... More like 10% or less ...