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      12-12-2018, 08:31 AM   #4
330-Singh
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Drives: E91 335i M-Sport Touring
Join Date: Aug 2011
Location: Herts, UK

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Quote:
Originally Posted by Dann View Post
N55 should be louder as it only has the primary cat but it does have a second "resonator" rather than a X pipe like the convertible has.

To make it louder, Replace resonator with X pipe and get the PE mod done to the back box.
Thanks for the feedback - is that what you have on yours?
Appreciate 0