In addition to the race-ready RMR Genesis Coupe, HKS and Street Concepts brought out their own rear-wheel-drive two-doors to the party.

Click above for a gallery of the HKS Nissan GT-R GT570.

Serious Nissan GT-R tuners aren't coming out of the woodwork - yet - but one of Japan's largest aftermarket firms has thrown its hat into the ring, and to good effect. HKS will begin offering its GT570 kit to consumers in Japan later this year (no word on U.S. distribution) and as it's name implies, output is getting close to the 600 hp mark. The package includes new wastegate actuators for the stock turbos and an electronic boost controller, along with aluminum intercooler piping, silicon hose couplers and straight pipes that replace the stock catalytic converters, reducing back pressure, but negating the GT-R's road-legal status.

Click above to enlarge