Stage 2: stock/mild modified engine, stock/modified pipes, stock/modified filters about an 8% power increaseIncreases power and drivabilityFully adjustable MaterialBrassProduct NameJet KitTypeStage 2UnitsKitVendor part number4150 MakeModelDisplacementYearCountryEngineYAMAHAWR 450 F 4502005AMERICAYAMAHAWR 450 F 4492005EUROPEYAMAHAWR 450 F 4502006AMERICAYAMAHAWR 450 F 4492006EUROPEYAMAHAWR 450 F 4502007AMERICAYAMAHAWR 450 F 4492007EUROPEYAMAHAWR 450 F 4502008AMERICAYAMAHAWR 450 F 4492008EUROPEYAMAHAWR 450 F 4502009AMERICAYAMAHAWR 450 F 4492009EUROPEYAMAHAWR 450 F 4502010AMERICAYAMAHAWR 450 F 4492010EUROPEYAMAHAWR 450 F 4502011AMERICAYAMAHAWR 450 F 4492011EUROPEYAMAHAYAMAHAYAMAHAYAMAHAYAMAHAYAMAHAYAMAHAYAMAHAYAMAHAYAMAHAYAMAHAYAMAHAYAMAHAYAMAHAWR 450 F WR 450 F WR 450 F WR 450 F WR 450 F WR 450 F WR 450 F WR 450 F WR 450 F WR 450 F WR 450 F WR 450 F WR 450 F WR 450 F 45044945044945044945044945044945044945044920052005200620062007200720082008200920092010201020112011AMERICAEUROPEAMERICAEUROPEAMERICAEUROPEAMERICAEUROPEAMERICAEUROPEAMERICAEUROPEAMERICAEUROPE