Hey just a quick question for ya on your truck. I took mine into the dealer the other day and asked them why my turbo was so loud on the highway. Well they looked it over and pointed out that I had 4" exhaust all the way back on the truck. I know that you have done the exhaust swap over. Did your get louder when you did that? I drove KWB's truck the other day and it was not loud like mine, but I am guessing that his is stock 3". Please let me know your thoughts. I do not want to find out that I need a new Turbo after my warrantee runs out. After I shut down the truck you can hear the Trubo still spooling down.