[donut]

Sound is subjective, IMO, hang a good sounding muffler on a stock vehicle you may as well get a neon sign that says "poser". Just my opinion, don't flame me for it.
Being a little older and spending 1-8hrs behind the wheel....
I'm old enough now that not having a full exhaust is a temporary thing.

I actually like the glasspacks coupled with a full exhaust (was about all you could get back in the day,). Like mentioned, they do last forever. Flip side to that is the pipe doesn't. I also lived in Maine and grew to like the sound of a cheap turbo muffler. Yes, I'd have to replace them yearly, but if the pipe wasn't OEM, it had to be replaced about every 2 years anyway.

My dually currently has glasspacks and duals. Actually what O'Reillys said was replacement for the truck. They were on it, so they stay for now. My old K-20 had cheap turbo's, driver and a plow truck.