have a question for people running a banks exhaust s/s 4 inch from the turbo back. the problem is when towing there is a noticeable increase in noise. it is about like being in a c-130 acft. the noise is most noticeable from 1900 rpm on up and is not fun for any legnth of time. called banks and they said they do not recieve many complaints on this, but would add the persons name to the list even though it is reportedly a small list. any feed back would be appreciated. thanks in advance. :{