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-€140.32
New
TST WORX Airbox for Kawasaki Ninja 400 (2018-2023)
Dispatch in 2-4 weeks
Fast delivery
14 day return policy
Secure Payment
Responsive Customer Service
€786.29
€926.61
- €140.32
Fast delivery
Fast and reliable shipping across the World
14 day return policy
Changed your mind? You can return your order within 14 days.
Secure Payment
All payments are encrypted and processed securely through a trusted provider.
Responsive Customer Service
We always respond quickly – wherever you're contacting us from.
Upgrade to podium-worthy performance with the TST WORX Airbox. Built from updated premium materials and hand-assembled in our Florida facility, this race-tuned kit includes our exclusive Airbox, Air Filter, and V2 Velocity Stacks that combine to enhance airflow and top-end performance, helping you achieve faster lap times and race day dominance—all at a new, lower price.
Add the tune to ensure your ECU is optimized for the enhanced airflow. Send us a stock, untuned, undamaged, and unmodified Ninja 400 ECU, and we'll flash it with our Stage 3 Tune. For best results, consult a tech who specializes in high-performance race bike tuning. See the Tune Details tab for more info.
This item is not eligible for discounts.
Applications:
Kawasaki Ninja 400 | 2018, 2019, 2020, 2021, 2022, 2023
This product is part of our Worx Program!
Features
- Replaces the entire stock airbox with a race-developed design
- 2.5 lbs lighter than the stock setup
- Bolt-on component - no modification required*
- Provides 8% increase to peak power compared to stock airbox
- Provides 5-10% increase in the upper range (9500 - 12500 RPM) compared to stock airbox
- Carbon fiber and high-strength polymer construction
- Toray Carbon Fiber Prepreg features a high gloss clear coat for UV protection
- Includes WORX V2 Velocity Stacks for optimized top end performance
- Includes specific WORX developed reusable pre-oiled foam air filter
- Comes pre-assembled and ready for installation
- Non-ABS and ABS-Compatible versions available
*Small tab located on the frame needs to be bent to provide proper clearance for installation.
Description
Our quest for class domination led our engineers to completely redesign the airbox assembly, seeking top-end power gains through a sophisticated new design that combines with our WORX V2 Velocity Stacks and a proprietary reusable open-cell high-performance foam air filter to deliver a 5-10% increase in the 9500-12500 RPM range. When paired with our WORX Stage 3 ECU tune, or your own custom tune, the results are instantly noticeable. The WORX Airbox completely replaces the stock setup, including the stock air filter and velocity stacks, and replaces them with specifically designed components that take advantage of the improved airflow and further optimize the volumetric efficiency for better engine performance and faster lap times. Built with uncompromising quality, this Ninja 400 Airbox is unlike anything else on the market.
Already purchase a WORX Ninja 400 Tune and want to upgrade? We'll provide a free tune reflash if you've already purchased a Stage I or Stage II tune from us before and can send in the same ECU.
The WORX Airbox comes pre-assembled, therefore we are not able to substitute items or customize the airbox or velocity stacks per order.
This item is not eligible for discounts.
N400AB_N400AB2_TUNE-2002
Data sheet
- Delivery
- Dispatch in 2-4 weeks
- Kawasaki
-
- Ninja 400 - 2018 - 2023
- Ninja 400 WORX - 2018 - 2023 Supersport
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Do you have questions about this product: TST WORX Airbox for Kawasaki Ninja 400 (2018-2023)?
If you encounter problems or need additional help, contact our customer support. We’ll be happy to assist you.