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      08-16-2012, 10:28 PM   #4
Pheonix
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Drives: 2007 Z4 M Coupe 2012 e93 M3
Join Date: Sep 2008
Location: Bay Area, CA

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2007 BMW/Z4MC  [0.00]
What do you mean by front to back? I did it myself (with help from my buddy) and it took us about 1.5 hour to swap out x-pipe and mufflers. It took us a good 4-5 hours to do the whole thing from header to the mufflers. The parts were Supersprint and used so no problem with fitment. So it will depend on what you have as well (straight swap or custome piping, etc...) Just shop around
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