Was more so for the pussies that couldn't handle it !!!
The first thing I did after buying my bike was get molded earplugs to combat the 2bros 6x6 pipes. Next came unmolested Standard/Tourer pipes, then 18" glasspack mod, and finally unmolested IS pipes.
To me, the two things loud pipes are best for are 1) making me wish I was on a quiet bike, and 2) pissing non-biker people off.