: Best exhaust option for 2008 cts 3.6 DI performance & luxury package

05-23-13, 01:04 PM
All I am looking to upgrade my exhaust, I have searched and really haven't found what I am inquiring. What are the benefits of going to 2.5 from 2.25 if not force inducted? Also what brand is the best to see a benefit? I would like a nice deep tone, all previous cars I just purchased the mufflers I wanted and installed at a local shop,why install the complete set up from headers back? Any help would be appreciated, didn't use a CAI just went with K&N like I had on my Escalade since it gave me a little more tone and better throttle response, and with the height of this car I don't wanna chance water, in southern Louisiana