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      02-02-2013, 05:23 PM   #3
LarThaL's Avatar
Drives: 2011 M3
Join Date: Apr 2011
Location: West Springfield, MA

Posts: 2,595
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Originally Posted by kitw View Post
it gets nasty raspy with deleting either cats
Ok. Has anyone tried just cutting secondary cats and replacing with resonators?

I ask this because on my Porsche Cayenne, I replaced the secondary cats with resonators and it sounds fantastic. The same type of cat delete with a straight pipe is also very raspy, however.
Precision tool: 2011 BMW ///M3
Sledgehammer: 2014 Audi S6

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