02-10-2010, 10:02 PM
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#3
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1.888.JLEVISW
Join Date: Apr 2002
Location: Santa Clara
Posts: 28,337
My Ride: BMW Duh
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I would do Active Autowerke. These are designed to give the car a deeper grumble but not be too loud for daily use or ruin the classic BMW sound.
Active Autowerke 323i/328i Exhaust
This is a 325 but will give you an idea:
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