Graves Motorsports Kawasaki Ninja 400 / Z400 / Ninja 500 / Z500 Velocity Stack Kit. Developed through our in house race programs. These stacks create a 6% power increase for $129.95 no tuning required!

• 1st & 2nd Charts show a completely stock bike compared to a bike equipped with the Graves' velocity stacks, WORKS2 full exhaust, DNA air filter and Graves FTEcu flash
• 3rd Dyno chart displays a completely stock bike with and without the velocity stacks - no tuning

FITMENT: 2018-2023 Kawasaki Ninja 400 / 2018-2023 Z400 / 2024 + Ninja 500 / 2024 + Z500

 NOTE: See video below to view complete installation instructions on this kit. Stock bikes the larger velocity stack installs on the ride side of the motorcycles. race bikes equipped with the Graves' velocity stacks, WORKS2 full exhaust, DNA air filter and Graves FTEcu flash: you will install the taller stack on the left side of airbox.