UPDATED Version 6 for 2026 1 piece, no cut! The EDR Performance Ninja 400, Ninja 500 & Z400 2018+ Velocity stack kit * All stacks are black (not red) Our Velocity are game-changers. Dyno-proven gains don't lie! Nearly 10% at the rear wheel! That is huge on these little guys! Developed in house on simulation software, the race track and then backed by dyno testing with real work data. Our stacks improve torque/HP to smooth power delivery. Our stacks provide a smooth power. This allows the rider a true feel for the throttle giving more accurate throttle inputs, improves confidence to get on the throttle sooner, and boosts overall rideability. The production stacks are produced with the highest quality material. These stacks are for race use, off-road competition use only. Not road legal! These kits do not contain instructions, they are intended for race technician installation. EDR Velocity stacks are best installed with some heat (DO NOT MELT WITH HEAT GUN) and you can install in under 20 mins time. NO cutting required! PLEASE NOTE: As of Summer 2026 due to extremely high demand your velocity stack order may take5-7 business days lead time. We fulfill all orders in the order received. These are custom made for you and as such do take some time. These products are intended for closed course off road competition use only. Use of this product for any other purpose is strictly prohibited. The buyer assumes all responsibility to local laws, regulations and use. All 3D products by EDR Performance, INC are made to order therefore non cancelable, refundable or returnable. We always will warranty any item needing 1 year from the date of purchase. Racing parts are never legal for sale or use in California or any pollution controlled vehicle. These products are 100% made to order, as such there is no cancellation, returns or refunds. If you need to make changes please contact us directly via email with your order number at [email protected]. No exceptions unless EDR Performance Inc gives written confirmation.
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