Awesome! Some folks say loud pipes save lives. I am one who disagrees since cars are so sound resistant and their radios are so good.
I would rather hear a bike with a mellow purr than an elephant farting.
Loud pipes doesn't save lives, but it does get people to somewhat notice instead of total oblivious of your presence. Rivet types are harder to re-pack unless you have a rivet tool to close it up after.