The Nismo R-Tune Carbon Hood is the most coveted carbon hood for the BNR34 Skyline GT-R. This hood provides improved aerodynamics and better air-flow for the engine bay to expel heat. Compared to a standard aluminum hood, the R-Tune Carbon Hood offers a reduction of approximately 3 kg, and over other carbon hoods offers a reduction of approximately 1kg. Installation of the R-tune air cleaner duct (16554-RSR46), improves adherence to the hood as well as effectiveness. A rain visor is attached to the air intake duct.