bowhunter,
Take a hard look at the MBRP systems. They have 100% welded hangers like a stock system has so you don't have any less the great clamp on style hangers to deal with, makes install a snap too! You get a muffler packed with a ceramic blanket and stainless steel wool that gets you a nice deep tone when you pedal to the metal but other wise it's very tame when cruising etc. Plus unlike the cheapo systems the packing material will not blow out over time and get loud. They are very affordable and available in aluminized, 409 or 304 stainless materials too.
Mark @ DPPI