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      10-14-2014, 08:50 AM   #1
vaio23
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M6 Exhaust fit 650I?

I just bought a M6 rear diffuser for my car and want to get an exhaust system. What will fit on a 650I with M6 diffuser? Will the stock or aftermarket M6 exhaust fit on a 650I or will even a aftermarket 650I exhaust work with the diffuser?
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      10-14-2014, 09:12 AM   #2
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You can use a stock M6 exhaust
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      10-14-2014, 10:51 AM   #3
Zack G.
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I'm trying to figure this out as well. I am leaning towards the Megan. It seems to be the most reasonably priced one on the market for our cars without spending $2k+
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      10-14-2014, 12:41 PM   #4
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You bought a OEM diffuser? Cause my buddy is giving me his M6 OEM exhaust, and I can't seen to find a aftermarket diffuser.
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      10-14-2014, 12:56 PM   #5
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Quote:
Originally Posted by simoniam View Post
You bought a OEM diffuser? Cause my buddy is giving me his M6 OEM exhaust, and I can't seen to find a aftermarket diffuser.
M6 diffuser fits fine.
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      10-14-2014, 01:00 PM   #6
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Quote:
Originally Posted by simoniam View Post
You bought a OEM diffuser? Cause my buddy is giving me his M6 OEM exhaust, and I can't seen to find a aftermarket diffuser.
I have the OEM M6 diffuser on mine and it fits fine. If you wanted aftermarket, I know 3D Designs has one in CF but it's $$$$$
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      10-15-2014, 07:34 AM   #7
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Quote:
Originally Posted by vaio23 View Post
I just bought a M6 rear diffuser for my car and want to get an exhaust system. What will fit on a 650I with M6 diffuser? Will the stock or aftermarket M6 exhaust fit on a 650I or will even a aftermarket 650I exhaust work with the diffuser?
I've never heard one in person, but I've been told the stock M6 exhaust is prone to droning when used on the 650i.

If you look at the size of the canisters on the exhaust, they are very small when compared to aftermarket options like Meisterschaft or Eisenmann.
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      10-15-2014, 09:54 AM   #8
vaio23
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Quote:
Originally Posted by ///M3THOD View Post
I've never heard one in person, but I've been told the stock M6 exhaust is prone to droning when used on the 650i.

If you look at the size of the canisters on the exhaust, they are very small when compared to aftermarket options like Meisterschaft or Eisenmann.
So would I be better off buying a Meisterschaft exhuast for the M6 rather than 650I? is the only difference the exhaust tip and locations?
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      10-19-2014, 07:10 AM   #9
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Opinion

Mine with M5 OEM exhaust, no drone and sounds rich and pleasant.
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      10-19-2014, 10:03 AM   #10
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Originally Posted by Palomequet View Post
Mine with M5 OEM exhaust, no drone and sounds rich and pleasant.
Interesting; any chance of sharing a video?
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      10-20-2014, 12:41 PM   #11
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Smile my 650i cabriolet

I would like to share
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      10-22-2014, 06:19 AM   #12
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Cool Does the M5 front brakes fit on the 6 without mod?
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      10-22-2014, 12:02 PM   #13
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Cool Does the M5 front brakes fit on the 6 without mod?
They are plain powder painted MBC OEM 650i calipers.
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      10-22-2014, 08:08 PM   #14
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They are plain powder painted MBC OEM 650i calipers.
And right pretty too !!
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      02-21-2015, 02:46 PM   #15
poloka
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Quote:
Originally Posted by vaio23
Quote:
Originally Posted by ///M3THOD View Post
I've never heard one in person, but I've been told the stock M6 exhaust is prone to droning when used on the 650i.

If you look at the size of the canisters on the exhaust, they are very small when compared to aftermarket options like Meisterschaft or Eisenmann.
So would I be better off buying a Meisterschaft exhuast for the M6 rather than 650I? is the only difference the exhaust tip and locations?
This is actually what I wondered. I messaged supremepower but he said they don't fit. Has anyone installed the F06 M6 on their 650 MSport? Any fitment issues?

Here is a link to what I was looking at trying to fit my 650:
http://gthaus.com/ver3_ghprice.php?s...age=1#pictures

Really want the oval tips but their 650 selection only has the 90.

http://gthaus.com/ver3_ghprice.php?s...t#.VOjok4ZOKJI

Also, they don't differ the MSport vs non.
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      03-14-2015, 02:22 PM   #16
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M6 Exhaust on 650i...

Never mind.... Ain't worth it...

Last edited by BMW Owner Florida; 03-14-2015 at 05:00 PM..
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      03-14-2015, 03:48 PM   #17
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Quote:
Originally Posted by BMW Owner Florida View Post
I did it this week... Took some work. The M6 exhaust is about 1/4 " short coming down from manifolds and after it goes straight it hit the underbody. We have to cut original top part of exhaust that mounts to manifold and weld longer cut 650 piece, cut 3/8" longer, to the M6 pipes.

Another problem is that your 650i exhaust is flat near your frame cross bars. The M6 exhaust is not. We had to bend the frame cross bars. I don't care much for this.

Looks great and sounds great.
Did I read this right? You bent your frame rails?!?! Why not just cut off the rear mufflers of the 650 and weld in the M6 mufflers? Just change the rear section rather than all the piping.. It's still 3" piping on the M6 right?
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      03-14-2015, 04:59 PM   #18
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Not frame rails...

The old exhaust is horrible on the 650. The frame straps are hardened steel and are slotted on each end. For the 1/2" of bend we tightened the straps on each end. Neither I or the mechanic so no problem with this.

Same tension as before... Do you have a problem with this?

Last edited by BMW Owner Florida; 03-14-2015 at 05:32 PM..
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      03-14-2015, 06:36 PM   #19
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Quote:
Originally Posted by BMW Owner Florida View Post
The old exhaust is horrible on the 650. The frame straps are hardened steel and are slotted on each end. For the 1/2" of bend we tightened the straps on each end. Neither I or the mechanic so no problem with this.

Same tension as before... Do you have a problem with this?
I think we may not be speaking the same language here, I read that you bent frame components on your 650, I think you may just be talking about the hangers that hold the exhaust to the frame? Maybe post some pics?
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      03-14-2015, 06:43 PM   #20
m34SPD
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I think that may be the case.
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      03-14-2015, 08:23 PM   #21
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so will the m6 exhaust fit 550/650?
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      03-20-2015, 08:43 PM   #22
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M6 Exhaust on 650i...

I put an M6 exhaust on my 2012 650... Without a tune, there was som dysfunction and droning... Then I did the Dinan Stage 3....

SWEET!!!! Perfect... Sounds great and somewhat quiet at idle and mid-range and bad a during acceleration...
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