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      01-20-2013, 08:29 PM   #9
First Lieutenant
Drives: 2013 F10 M5
Join Date: Apr 2012
Location: NJ

Posts: 361
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Originally Posted by topaz330
here is the inside of the exhaust, don't think there really is much to modify

Those definitely look like they can be modified....that material can be removed and maybe put connecting pipes to the two outlets so its more straight through.. Just my opinion
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