Bought new in November 2011 and just under 40K miles. Added AE exhaust about 20K miles. Stock other that than. Threw codes P0300 (multiple cylinders misfiring), P0303 (cyl 3 misfire), and P0304 (cyl 4 misfire).
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'16 235i
'15 3500 HD Dually
'13 C4S
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