this might be the time we start seeing hyundai specific tuners come out in bigger numbers, don't know of any right now but I know when Lexus started getting this sporty, that's what happened to them.I'm sure the exhaust will be docile, but I think the GT & GT Sport are designed for comfort 1st and performance 2nd, so you'd expect something on the tame side. However, I also don't doubt that someone (perhaps even Hyundai) sells an aftermarket exhaust with a more aggressive sound -- kind of like Kia is doing with the Kia Stinger GT.