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      09-29-2011, 11:11 AM   #2
al1
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Drives: z4 35i
Join Date: Aug 2010
Location: Istanbul / Turkey

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I wouldnt just take off the mufflers without having any professional opinion because of the turbos. On a NA car is not biggy to not have any back pressure but I know by my personal experience that cars having forced induction kits might face with very bad consequences by not having any back pressure. Imo you could get some sort of less restricted resonators instead of mufflers I would still keep something in there.

Also I ve seen some custom jobs on our cars as well so maybe you could get some opinion from a good exhaust shop around the neighborhood. my 2 cents..
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