Since the introduction of the GT-R, Nissan has stated a horsepower rating of 480. However, that number actually refers to the Japanese-spec GT-R certified at 480 PS, which converts to 473 SAE horsepower. Apparently Nissan prefers nice, round numbers, and are aiming to bring the U.S.-spec GT-R up to 480 hp by the time it hits dealerships in June. Either that, or they just want to make sure its specs are on par with the Porsche 911 Turbo, which was used as a benchmark in the car's development. We doubt anyone would love the GT-R less without that seven extra horsepower, but we're not about to complain. No word yet on what changes will be made or how it will be achieved.