Ok guys. Im a Chevy kind of guy. But Im hooked on the way a PowerStroke whistles. I had one to pull up beside me in town today. A Duramax is no where close to sounding that way. It sounded like a Jet Plane and I was at the front of the truck. How do I get an 04 D-Max to sound like that. We're looking at an 04. Whats the cheapest way to get a mean sound.