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      08-15-2012, 01:03 AM   #15
jenks89
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Drives: 2012 535i M Sport
Join Date: Aug 2011
Location: Tampa, Fl

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Quote:
Originally Posted by ceebange061175
Can I ask you how much cost for modify everything and how many hours? I got quote for $350 for 5 hours labor job.
Well. Mine was done in stages because I was waiting on the M5 diffuser so we used one from a 550i in the meantime. I only did an axle back exhaust. Which just requires cutting off stock and welding on new. That shouldn't take longer than an hour or so. So if shop rate is around $80-$100/hr then you shouldn't pay more then $150 IMO. That being said, it took us almost 3 hours to fit the M5 diffuser mainly because we had no F'ing clue what to do with the adapter plate and PDC sensors. Hindsight it could've been done in about an hour as well.

So your super long answer is that a shop who has done this before could probably do it in 2-3hrs. Otherwise, the quote they gave you is pretty realistic and honestly inexpensive by the hour!
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