Did it lower MPG at all? assuming normal driving and not stomping on it all the time because it's more fun.
FWIW: I just picked up a CPO'2014 and was a bit nervous about the exhaust note from the n20. I traded a 2014 X1 x28i and it literally had no exhaust sound worth mentioning. I was happy to hear a somewhat aggressive growl from the Z4..similar to a WRX modified exhaust. (you can't get much from a 4 banger so it sounds pretty good.)
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CURRENT:
10 328iT ZMP-6spd, 00 Z3 MCoupe, 76 2002 stg.2 5 speed
PAST: 96 318ti Cali, 03 325Ci, 00 Z3 M Roadster, 99 Z3 2.8 Coupe, 14 X128i M-Sport14 Z4 28i Sport 6-spd
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