We selected Revel as one of our exhaust offerings for GS350, because based on the feedback we received from our customers, this is a very good axle-back exhaust system for the money on the market. It can be bought with the Apexi mid-pipe system that we sell to make a full cat-back exhaust system for your GS350. The elegant, well-defined appearance of MEDALION TOURING is mature, and matches the artistry of a tastefully built, highly tuned machine. Using the all new 'continuous strand' ADVANTEX packing material technology, MEDALION TOURING achieves extremely high levels of exhaust system efficiency, while maintaining a street driveable, extremely low frequency and deep tone that is well under 93db for discreet sports driving.The full SUS304 stainless MEDALION TOURING features a slim-line oval canister, and a special dual wall, angle-cut tip.This system requires no removeable silencer for under 93db operation at all rpms. The extremely deep, low frequency tone keeps in-cabin noise to a minimum.