Hyundai says they have a 10 year 100,000 mile warranty on the drivetrain of their cars. Hyundai is also saying the Genesis Coupe will be a Tuner car. So the delemma I see is that Hyundai is advertising the Coupe a certain way, almost implying that modifications will happen or even encouraging it. So will hyundai support their warranty if a person does modify their car? If not, what kinds of modifications will void the warranty? That being said I don't expect them to back up a warranty if I am running 30 pounds of boost.