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      08-10-2010, 09:45 PM   #28
Race_Doc11
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Drives: 2023 G82 M4
Join Date: Jan 2008
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2023 BMW G82 M4  [9.00]
2018 F80 M3  [10.00]
2013 Audi RS5 (Sold)  [10.00]
2008 E93 M3 (Sold)  [10.00]
I did mean the GTS sorry!
Quote:
Originally Posted by erio View Post
The GTR has a Boysen exhaust and it's the GTS that has the Akrapovic. Boysen is a apparently a supplier and not an aftermarket company. I don't know the details on that exhaust. See this thread about half down the first page:

http://www.m3post.com/forums/showthread.php?t=415757
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