EDR Kawasaki Ninja ZX-4RR Velocity Stacks 2023+
The EDR Performance Ninja ZX-4RR Velocity stack kit
Our Velocity Stacks are game-changers.
Dyno-proven gains don't lie! You can see up to 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 rider confidence.
The production stacks are produced with the highest quality materials.
EDR Performance Velocity stacks for the ZX4RR
-100% designed in house by us
-100% manufactured in house by us
-100% dyno tested in our state of the art dyno
-100% designed, developed, produced by a REAL shop that knows what works and what doesn't then has the capabilities all IN HOUSE to provide you with 100% PROVEN results!!
These stacks are for race use, off-road competition use only. Not road legal!
**PLEASE NOTE: As of Summer 2025 due to extremely high demand your velocity stack order may take 2-3 weeks lead time. We fulfill all orders in the order of which placed. These are custom made for you and as such do take some time.
These kits do not contain instructions, they are intended for race technician installation. Each kit contains 2 tall stacks, and 2 short stacks. Installation is simple and easy for new and experienced motorcycle enthusiasts
These products are intended for closed course off road competition use only. Use of this product for any other purpose is strictly prohibited. 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 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 parts 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 not in stock currently are 100% special order, as such there is no cancellation, returns or refunds on these products. If you need to make changes please contact us directly via email with your order number at Info@edrperformance.com. No exceptions unless EDR Performance Inc gives written confirmation
