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      06-07-2009, 03:52 PM   #251
DON MORRISON
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Drives: 09 335I COUPE ON ORDER
Join Date: Apr 2009
Location: CHARLOTTE NC

Posts: 11
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bmw has an aftermarket mufflers , dealer install and it does not have the valve so the back pressure issue seems moot,aia will do the golf t.My dealership offered to get and install Corsa mufflers, no valve here either.
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