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      01-10-2013, 10:52 PM   #12
jetblackcoupe
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Drives: 2008 e92 335i 6MT
Join Date: Apr 2011
Location: NJ

Posts: 706
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I have stock with catless downpipes (cp-e). Idle is louder for a short time. Overall tone is deeper but volume level did not increase significantly unless past 3500-4500 rpm... Also there is some rasp nearing redline especially when oil isn't near 230/240F.
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