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      05-21-2012, 10:36 PM   #15
reubendp
Subterfuge
 
Drives: 2006 330i MT
Join Date: Mar 2012
Location: Los Angeles

Posts: 36
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Agreed. Definitely let it break in. My magnaflow took about a week and it definitely got louder and a little higher pitch too
reubendp is offline   United_States
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