I run the Edge CS evolution with a 4" dpf/doc delete pipe. I tow but mainly a daily driver. Besides the obvious throaty diesel sound coming from the pipe, I've noticed an increase in power, a mileage gain and overall engine performance. I did a couple of SOAP samples with the DPF on for the first 38k miles and averaged between 5-7% fuel dilution in the oil which created premature wear (on a 5k mile oil...ridiculous). I had the Edge juice w/ attitude previously and they do exchanges so i stayed with Edge. I don't turn it up and go crazy...most of the time it's on stock even when I'm towing through the hills....i wanted it for the dpf delete tune. Premature engine wear on an investment isn't cool in my book.
hope this helps