K & N Air Filter - CBR500R HA-5013 Replacement Clutch Spring Set The exhaust valve race uses

The exhaust valve race uses the factory exup hardware alongside the Graves EVR valve and custom mapping to improve low to mid-range rpm and small throttle opening torque and drivability to create and better powerband and ride

when using a rear tire with a larger diameter (like motorcycle race slicks and DOT race tires)

Classic 4" styling NH Series internals Machined aluminum end caps Aggressive sound Sold in pairs Made in the U

Graves Motorsports Rear Axle Alignment Tool for the 2023 ZX-4RR + 2018-2023 + Ninja 400 and 15-23 + Yamaha R3

Constructed from premium aerospace grade titanium

K & N Air Filter - CBR500R HA-5013 Replacement Clutch Spring Set The exhaust valve race usesFits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit Fuel management modifications are not required for increased performance Pleated media provides a large filtration area offering long service intervals Designed to provide increased performance Made in the U. S. A.