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      12-14-2012, 04:46 PM   #17
wackjob
New Member
 
Drives: 2007 E92 335i 6MT
Join Date: May 2011
Location: Corona, CA

Posts: 22
iTrader: (2)

Just grabbed a Magnaflow catback (dual muffler) from another forum member and put it on a couple of weeks ago.

There 'is' some drone around the 1700-2300 RPM range, but outside of that there's none at all. When cruising on the freeway I'm above that range, which works for me.

To each his own though.
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