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Old 11-08-2011, 01:25 PM   #17
Jim Murphy
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Join Date: Mar 2009
Location: Atlanta (Dunwoody), GA
Posts: 456
My Ride: 2006 E46 330Ci ZHP
We have been discussing going to a single 3" catback exhaust at this thread - http://forum.e46fanatics.com/showthread.php?t=880013
You will see what I am getting.
Something to consider.

Whatever you choose I have learned that for the quietest exhaust, the resonators and mufflers must be "converged" not separate like the UUC that I am getting rid of. By "converged" I mean that the two pipes enter and exit ONE resonator/muffler rather than never mixing in separate resonators/mufflers.
BTW, X pipes only really work on V8 exhausts.

Jim
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