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Old 05-07-2010, 12:03 PM   #1
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Join Date: Nov 2008
Location: Mississauga
Posts: 227
E46 M3 with subs?? *help

I wanna upgrade my subwoofer system in my M3 but not sure what the procedure involves. anyone know how to switch the stock sub with say an MTX in a box? Do I need another amp as well? where is the stock amp located?

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