I have an manuel with Bassani mufflers and an off road x-pipe. However, since hers is an auto, go with Borla Stingers. My cousin has an auto with those and it sounds great.
I'm waiting for mine to show up but it's a Pypes O/R X with SLP Loudmouths. Should sound pretty good. One guy described the setup as "loud enough to wake the dead." :beer: