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for the price its 100% worth it
i've always said it doesn't do much. However, i once forgot to turn it on and immediately noticed its absence. so it definitely does something
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2018 M3 6 spd
2017 M3 AW/SO 6spd
2014 435i M sport BSM/Coral 6spd (retired)
2013 550i M sport Alpine White/Cinnamon (retired)
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