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      02-06-2015, 11:55 AM   #1
DrewBert
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X5m/x6m downpipe question

Has anyone ever seen an x5 or x6m with slip on downpipes instead of two bolt flanges where it connects to the exhaust?
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      02-06-2015, 02:21 PM   #2
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yap, they are suppose to be for 2011 or newer S63 or something along those lines, the stock exhaust added a slip on flange after the two bolt and the downpipes that uses the slip on design is a little longer. However, this is rather pointless since the 2 bolt still works just fine on the newer year car, and if you want to pair with a full exhaust like Akra, you must use the 2 bolt style
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      02-06-2015, 02:30 PM   #3
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Quote:
Originally Posted by theaudir8fan
yap, they are suppose to be for 2011 or newer S63 or something along those lines, the stock exhaust added a slip on flange after the two bolt and the downpipes that uses the slip on design is a little longer. However, this is rather pointless since the 2 bolt still works just fine on the newer year car, and if you want to pair with a full exhaust like Akra, you must use the 2 bolt style
So the slip on will work for all 2011 and newer? Just slip in and clamp them down even if the stock exhaust had flanges?
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      02-06-2015, 06:55 PM   #4
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Quote:
Originally Posted by DrewBert View Post
So the slip on will work for all 2011 and newer? Just slip in and clamp them down even if the stock exhaust had flanges?
I'm not 100% sure when is the switch, but i think it's in 2011, there might be a specific month that they go by too, check with AR design, they are the only once i know that makes a slip fit. The slip fit section is after the flange, so if you take it apart, the flange section on the stock exhaust get replaced
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      02-06-2015, 06:57 PM   #5
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Quote:
Originally Posted by theaudir8fan
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Originally Posted by DrewBert View Post
So the slip on will work for all 2011 and newer? Just slip in and clamp them down even if the stock exhaust had flanges?
I'm not 100% sure when is the switch, but i think it's in 2011, there might be a specific month that they go by too, check with AR design, they are the only once i know that makes a slip fit. The slip fit section is after the flange, so if you take it apart, the flange section on the stock exhaust get replaced
I've emailed AR 4 times now and haven't gotten a response from them. It's pretty frustrating
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      02-07-2015, 05:46 PM   #6
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I've emailed AR 4 times now and haven't gotten a response from them. It's pretty frustrating
They really want your business.
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      02-07-2015, 06:01 PM   #7
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I have a 2013 X6m. I hoisted the car and looked underneath and it is a two bolt flange style design.
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      02-07-2015, 06:05 PM   #8
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Quote:
Originally Posted by theaudir8fan View Post
yap, they are suppose to be for 2011 or newer S63 or something along those lines, the stock exhaust added a slip on flange after the two bolt and the downpipes that uses the slip on design is a little longer. However, this is rather pointless since the 2 bolt still works just fine on the newer year car, and if you want to pair with a full exhaust like Akra, you must use the 2 bolt style
This does not make sense to me. 2013 X6M I have is 2 bolt. I see no "slip on" section.
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      02-07-2015, 09:31 PM   #9
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I did catless with Akra, so i used the 2 bolt setup too, it's been a while so maybe i'm mistaken. But check with GTB performance to confirm which once is for our cars. My information about the newer year using the flange is from their website

http://www.gtbperformance.com/ar-des...63-motors.html
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      02-14-2015, 10:48 PM   #10
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There is a two bolt flange followed by a slip-on flange at the point where the exhaust mates with the downpipe for the 2011+. Don't worry about it. It's there almost to make removing the exhaust easier without loosening the bolts to the downpipe. I'm not sure why its there but its only a 8" section. If you look up a little further, you will see the two bolt flange.
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