Simple, inexspensive mods are exhuast and intake. You can get nice sounding mufflers along with the resonator cut-off to give a deep throaty sound. There are many different kinds. Borla, Flowmaster, Bullit, Ravin etc.. I recommend flowmaster. stick with the 40 series not delta. Second mod...
I have a 97. Took it to Midas today. They said they will have no problem getting the flowmasters on and putting the stock tips on as well. Just need to find someone that is really good with custom exhuast work.
Bill T.
97 Ebony
117K - no welds
Flowmaster 40's
K&N Cone Filter