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      08-31-2012, 02:15 PM   #9
bimdo
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Drives: 2008 e90 m3
Join Date: Jan 2012
Location: usa

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bsw does have upgraded speakers for the eps system-

http://www.bavariansoundwerks.com/pr...Series-M3-E90/

i did the speaker upgrade to my base audio and am very pleased.the speakers are of high quality,the sound is much crisper and less muddy.this is a good way to go if you want to stay as oem as you can,and not run new wires.install is easy.it's not as good as an all new system,but is a lot better than stock,and very convenient,being designed for the car.