I thought of just a muffler, but then changed my mind. If I ever wanted to go stock it'd be easier to bolt the old one instead of trying to piece it back together. Also, both systems are stainless so they should last a bit longer than factory.
As for the sound, I've only heard you tube videos so I don't know if they sound like a "fart can" or tractor. I will say I've heard some 4.3 S10s and 4.0 rangers sound pretty good. Not sure if my truck would or wouldn't be one of the good ones or not. Both systems are louder than stock, but I've never seen them called obnoxiously loud so far. I just want a sound I'll enjoy, not a hey look at me sound.
I'm not expecting performance. I figure I may gain 5hp with is entirely unnoticeable. I'm mainly looking for a decent sound. If I'm lucky may get an extra 1mpg.