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      09-29-2011, 09:45 PM   #34
jnkirk1974
First Lieutenant
United_States
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Drives: 2014 M6 Coupe
Join Date: Sep 2011
Location: Rockwall, Texas

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Garage List
2014 BMW M6 Coupe  [2.50]
2011 BMW 550i  [0.00]
Can I ask a stupid question? What exact does the x-pipe do? How does it differ from anything else? Thanks!