You drive the car from inside. So I voted for the HK, because I really like to listen to the music in the car. The other stuff - rims and LED are from the outside from the car and while driving doesn't give you more comfort or something... The Xenon works well, the 18'' rims could be just better for driving, so def. HK!
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F80 M3 SO/SO |BM3 St.1 91 oct.|Cattless DPs|Tractive P'n'P|Brembo 6pot|Rays G25 with CUP2 tires|GTS coding|
1M VO FBO (KW DDC) PTF st.2+ sold
e90 335i FBO jb4 sold
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