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It's been a while since this discussion started. I'm looking at buying a 2016 50i pretty soon. Have other/better tuning options come out? I have JB4 on my F30 and I'm happy with it but that's my first and only experience with a piggy back. Think I'd prefer a flash.
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2013 F30 335i ///M-Sport
Forgestar/Challenge/BMS JB4
Wagner/Evo Race/M-Performance
2016 F15 50i ///M-Sport
BM3/H&R/Borla
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