Cummins Diesel Engine Sounds.
I've driven from Phoenix to the midwest (OH, IN, MI, WV, Ontario, Canada & many other states) in the past. Normally, I drive with at least the drivers window down so as to listen to the engine sounds. Don't play the radio, only the CB to be aware of what is going on along the highway.
My old '91. 5 W-250 had Banks exhaust & had a unique sound. The trailer RV storage lot in Northern AZ. always knew when I was arriving. The '03, 3500 has Magnaflow exhaust aong with an AFE fresh air intake system with a metal tube going from the A/F to the intake on the turbo. I removed the silencer ring on the turbo & the "whistle" really resonates inside that metal tube (Torque Tube, as I recall). When I first installed it, I thought I had finally overdone it but, have since gotten used to the sound.
All my friends have Duramaxxes & love the quietness of their trucks & can't stand my trucks. That's fine with me. It's kind of like having a Harley with quiet mufflers!!!
Pulling a hill or mountain grade in the '03 is like listening to a symphony for me. Must be brain damage!!!
Joe F.