we had a Roe on our 98 RT10 for 15 years, zero issues. plenty of long trips, Detroit, Salt Lake City, Charlotte, FL, etc.  Installer and tune are the key.
Yours being 2002, 5 lb boost is safe, more than that you’ll probably need water/meth, nitrous, etc. Loud depends on exhaust mods, most likely catless or high flow cats. Maybe others will chime in. But, I’d say do it if you want.