Air box racing duct designed and produced by Sprint Filter with the intake kits for Yamaha R1 (2015 --->), is the result given by a detailed optimization thanks to the extended use of computational fluid dynamics. The resurfacing of the duct brought to the decreasing of the high pressure loss localized at the inlet given, by the sharp bend radius of the original entry every hydraulic section area has been corrected as well as the its linearization from inlet to outlet. Flow detachments and stalls have been removed therefore having a more laminar flow field and less pressure drops.
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