I have a 2000 Stique and did the following .
I had the resonator cut out and replaced with a straight through type tubular muffler. It's not a glass pack but a high quality muffler that fits like a glove and even had the right bends and offsets. Then I had them hack off the rear muffler and replace it with a really short (about 12")
low restriction turbo muffler with 2.5" inlet and outlets. I also bought some nice chrome dual tips (2") with resonators built in which peek out from under my bumper. It looks like the way BMW's look with dual tips coming out from under the left bumper.
Even better is is sounds cool. Not too loud. A nice throaty sound that doesn't sound ricey. Car pulls much much better now and had better fuel economy too.
