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Just got my Fabspeed Catted down pipe installed today by Supreme Power in Anaheim. Very satisfied! Still early but my butt dyno can definitely tell a difference in acceleration. I have the stock exhaust and I hear a growl on acceleration with my windows down. Keeping my fingers crossed for no CELs. Now I'm just waiting for my AWE exhaust. 4 weeks and STILL waiting.
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2015 M235i BSM / 2011 X5D AW
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