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      11-23-2017, 04:14 PM   #1
Danny1388
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Will M6 Axle back exhausts fit a 640?

Hi all,

Will any of the M6 or aftermarket M6 axle back exhaust systems fit a 640iX?
I already have the diffuser to go with the bumper.

Thanks!

Last edited by Danny1388; 11-23-2017 at 05:12 PM..
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      11-25-2017, 01:55 AM   #2
BMPOWERED
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Yes. Your muffler shop will just have to use an adapter to allow the bigger pipes of the M6 mufflers to fit with your smaller diameter pipes
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      11-29-2017, 08:09 AM   #3
Danny1388
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Quote:
Originally Posted by BMWShay View Post
Yes. Your muffler shop will just have to use an adapter to allow the bigger pipes of the M6 mufflers to fit with your smaller diameter pipes


Thanks a ton! I've also seen your car around the forum a few times- clean setup

Btw how will the difference in pipe size affect the tone of the exhaust? Any difference?
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      11-30-2017, 10:06 PM   #4
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Quote:
Originally Posted by Danny1388 View Post
Thanks a ton! I've also seen your car around the forum a few times- clean setup

Btw how will the difference in pipe size affect the tone of the exhaust? Any difference?
Thanks The change in pipe size shouldn't have much affect on the tone. At least it didn't on my 650. However the tone will of course be different on your car being that it's an inline 6. I know member 'ndinh' put M6 mufflers on his 640 and he seems happy with the set up. He has posted a few times on this and the 'other' forum. He's a wealth of knowledge!
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