[ohmycts4]

I have a 2011 CTS Premium AWD 3.6L DI sedan. Are there any cat back systems that fit and sound good with no highway drone? It seems there are some out there, but they say "Excludes AWD..." any help would be appreciated.

 

[tinman]

Lots has been written on this. You are in the correct part of the forum, just start paging through the threads, or do a search. We presume you have awd, right? When asking questions provide all the information you have available.