stock exhaust work
Thread Starter
MBWorld Fanatic!
Joined: Dec 2010
Posts: 1,170
Likes: 1
From: 626
E63 Black on Black
stock exhaust work
Right now my exhaust mods
No muffler - straight pipe
no resonator - x pipe
No secondary cats - straight pipe
this setup sound like xpipe/no muffler but louder
Will post sound clip soon
My previous setups
Setup 1
only x pipe
quite only after you rev 2.5-3k do you hear a mid tone growl
Setup 2
xpipe and no mufflers
2.5-3k mid toned
5k--- loud high pitched
http://www.youtube.com/watch?v=fRqRj5pTtKU
http://www.youtube.com/watch?v=IgYTcLa-H5E
http://www.youtube.com/watch?v=Lfbb5K4p5JA
setup 3
only had my primary cats on everything else was not connected.
roaring whole time and my seat was vibrating barely hear sound difference verything was deep
no video only had this setup for a couple of hours for the laughs of it
No muffler - straight pipe
no resonator - x pipe
No secondary cats - straight pipe
this setup sound like xpipe/no muffler but louder
Will post sound clip soon
My previous setups
Setup 1
only x pipe
quite only after you rev 2.5-3k do you hear a mid tone growl
Setup 2
xpipe and no mufflers
2.5-3k mid toned
5k--- loud high pitched
http://www.youtube.com/watch?v=fRqRj5pTtKU
http://www.youtube.com/watch?v=IgYTcLa-H5E
http://www.youtube.com/watch?v=Lfbb5K4p5JA
setup 3
only had my primary cats on everything else was not connected.
roaring whole time and my seat was vibrating barely hear sound difference verything was deep
no video only had this setup for a couple of hours for the laughs of it
Last edited by Mixedfruits; Nov 8, 2011 at 09:16 PM.
MBWorld Fanatic!
Joined: Aug 2009
Posts: 1,134
Likes: 8
From: Charlotte, NC
2015 BMW M235i 6MT
The guy that put on my x-pipe and mufflers also said the 2nd cats are resonators, so he would have no problem removing them if I wanted them removed. He doesn't touch the cats, normally. So I'm guessing they won't throw an error code if the 2nd cats were removed. I don't know how catalytic convertors actually work or what's inside them.
You should put the camera farther back from the car. It sounds deep! That's for sure.
You should put the camera farther back from the car. It sounds deep! That's for sure.
Thread Starter
MBWorld Fanatic!
Joined: Dec 2010
Posts: 1,170
Likes: 1
From: 626
E63 Black on Black
The guy that put on my x-pipe and mufflers also said the 2nd cats are resonators, so he would have no problem removing them if I wanted them removed. He doesn't touch the cats, normally. So I'm guessing they won't throw an error code if the 2nd cats were removed. I don't know how catalytic convertors actually work or what's inside them.
You should put the camera farther back from the car. It sounds deep! That's for sure.
You should put the camera farther back from the car. It sounds deep! That's for sure.
MBWorld Fanatic!
Joined: Aug 2009
Posts: 1,134
Likes: 8
From: Charlotte, NC
2015 BMW M235i 6MT
What happened after you removed your 2nd cats? Did it get louder?
