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      06-08-2009, 06:43 PM   #6
808MGuy's Avatar
Drives: 2009 E90 M3
Join Date: Jun 2008
Location: Oahu, Hawaii

Posts: 2,271
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I've come to learn that you should never expect "thump" from any factory upgraded sound system. Its just not going to happen. Mostly because its not feasible for the factory to care about such things. The only time the factory upgrade is worth it is for people who are not overly critical about sound reproduction but want a little more volume over the base system. Anything more than that is just asking way too much.
09 E90 M3 - Interlagos Blue / Black Novillo / Sycamore Anthracite / Eibach / HRE

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