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Graves Motorsports Kawasaki Ninja 400 18-23 Velocity Stacks

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$129.95 $123.45
(You save $6.50)

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Graves Motorsports Kawasaki Ninja 400 / Z400 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