samirkhan Posted February 27, 2012 Report Share Posted February 27, 2012 my mechanic is insisting on changing my Z3 BMW Exhaust with a more powerful one but i have heard cases where this major change can cause fire. I am looking for a second opinion online and i am going to a second mechanic next week for advise too. what say! Link to comment Share on other sites More sharing options...
hemesh Posted February 28, 2012 Report Share Posted February 28, 2012 It is not a good thing to upgrade the exhaust. Link to comment Share on other sites More sharing options...
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