I had a custom exhaust system built for my 98 gs300, but it was to loud for me. It really isn't that loud. It has Dynomax super turbos at the back and glass packs in place of stock glass packs. 2.5 inch all the way back from the mini resonator after the cats. If any one wants to by it, I live in Portland, OR. $200.
Call 5037534545.
The system has a nice tone.