Can the 2008 550i approach the E39 M5??
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Joined: Jul 2007
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From: Miami, FL U S A
My Ride: Close to ordering 2008 550i Sport Packg w/ sport auto tran.
Previous owner of 2000 328i and 2003 E39 M5
I was wondering if someone like ROleez or Jetblack could make a post about what aftermarket mods can be done with a 2008 550i with a sport auto transmission. I would love to get this car to 400hp and tweak the rear diff most imporved acceleration.
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