Exhaust options with test pipes
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02-01-2013, 08:04 PM
Drives: 2011 M3
Join Date: Feb 2013
Location: Dallas, TX
Originally Posted by
Dinan and Borla are the two quad resonated options. You can also add resonators to your x-pipe. I added four to my aftermarket x-pipe.
are there any 3" exhausts out there with quad resonators?
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