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The upgrade alpine system as I've been told is just below the professional system but above the hi-fi loadspeaker system with 10 speakers in sound quality.
As i got a 335 coupe has standand hi-fi loadspeaker system i don't know what the rest of models have.
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THE BEAST MHD Flash Tune /M3 suspension/Forge Intercooler/Alpina B3 AT Flash/Bilstein B4 Suspension/BMW OEM M3 Steering Wheel and DCT Paddles/LUX V4 Angel Eyes/CIC Retrofitted
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