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You are right, I posted this on the F30 forum since the actual project is intended for a F30-335i, but got no response, I just want to know if the $800 speaker upgrade is worth it, maybe you can tell me your experience with your car, did you really noticed a big difference in sound quality? and also your experience dealing with BSW, Im assuming that if they work good on an X6, probably the F30 upgrade will also improve the sound too.
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