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Attention: You are purchasing closed course competition Product(s)

I acknowledge that the product(s) being purchased () was/were designed and intended for closed course competition use only. The product(s) is/are neither designed nor intended for use on public roads or land and is against Federal and State regulations to do so. By proceeding with this purchase, I , agree to only use the product(s) for closed course competition.

If an ECU tune was purchased, please send your unmodified and undamaged OEM ECU to TST Industries, located at 623 Pleasant St, Lake Helen, FL 32744.

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U.S. customers are offered a free shipping option for orders with a discounted subtotal greater than $150.00 (before taxes applied). The order's shipment destination must reside within the United States of America. The free shipping options still utilize our standard postage providers and 3rd party shipping companies. Does not apply to large items such as exhausts, stands, and bodywork shipping. All terms and conditions that apply to normal orders will continue to apply to orders with a free shipping option.

NO RESTOCKING FEES:

An item returned within 30 days of purchase, that includes an accurate RMA#, in a perfectly new, unopened condition, and that complies with our other return policies, will not be charged a restocking fee.

MOST QUESTIONS ABOUT THIS PRODUCT CAN BE ANSWERED ON THIS PAGE.

The most common product related questions are answered in the tabs section on this page. Be sure to carefully read through the "Product Details", "In the Box", and "FAQs" tabs. In addition, a lot of our products have comprehensive videos demonstrating installations and product features. You can find those videos in the "Videos" tab.

Note: Some product pages may not have all the tabs mentioned above. Please read through all the available tabs to find the answers to your questions. If you still need assistance, please use the "ASK A QUESTION ABOUT THIS PRODUCT" button below the tabs section.
NO ADDITIONAL COST: You pay at the time of checkout and never have to worry again.
COVERAGE: Our Limited Extended Warranty starts on the date of purchase. It covers all manufacturer defects for our TST Exclusive products. (Products manufactured by us with the exception of our WORX products)
EXPERT HELP: As always our team is here to help. If you’re unsure about this warranty or if your product is eligible, feel free to reach out to us and we can help answer any questions you may have!
PRODUCT ELIGIBILITY: TST will offer our Limited Extended Warranty on all products manufactured by TST Industries.
EASY CLAIMS PROCESS: Simply click the “Contact Us” page and fill out the “Returns Form” to begin the warranty process. Once our team receives your email and initiates the RMA, you can send your product back to us and we will repair/replace the product at no cost as long as a manufacturer defect is found. What qualifies as a manufacturer defect? Check out our Terms and Conditions for some examples!

TST Emission Block Off Kit for Kawasaki Ninja 400 / Z400 / Ninja 500

  • TST Emission Block Off Kit for Kawasaki Ninja 400 / Z400 / Ninja 500
  • What's included in the TST Kawasaki Ninja 400 / Z400 / Ninja 500 Block Off Kit.
  • Smog block off plate is manufactured from CNC machined aluminum with a gorgeous black anodized finish.
  • Remove your Kawasaki's AIS system with the TST Emission Block Off Kit.
  • Prevent your Kawasaki from displaying errors with the included AIS circuit plug.
  • TST Emission Block Off Kit shown installed on the 2018 Kawasaki Ninja 400.

TST Emission Block Off Kit for Kawasaki Ninja 400 / Z400 / Ninja 500

TST Emission Block Off Kit for Kawasaki Ninja 400 / Z400 / Ninja 500

The TST Emission Block Off Kit enables you to remove the air induction system (AIS) from your Kawasaki engine and seal the holes left behind. With the AIS removed you will be able to get an accurate air/fuel ratio tune and keep exhaust popping to a minimum, not to mention save a little weight and decrease engine clutter.

Applications:
Kawasaki Ninja 400 | 2018, 2019, 2020, 2021, 2022, 2023
Kawasaki Z400 | 2019, 2020, 2021, 2022, 2023
Kawasaki Ninja 500 | 2024, 2025

This product is part of our Worx Program!

Learn More!
Have a Question About This Product?
SKU 10385=1
2018 - 2023/Ninja 400/Kawasaki
TST Emission Block Off Kit for Kawasaki Ninja 400 / Z400 / Ninja 500
 
Price: $34.99
Quantity

ATTENTION:

If buying this product as part of the Buy Together bundle below, define these options there.

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  • Product Details
  • In the Box
  • Recommended Accessories

Features

  • Enables accurate air/fuel ratio tuning
  • Smog block off plate features a durable black anodized finish
  • Features laser engraved TST logo
  • Manufactured from CNC machined billet aluminum
  • Removes bulky AIS system and seals inlet ports
  • Includes stainless steel installation hardware and rubber plug
  • Also includes PAIR AIS Eliminator Circuit to prevent your Kawasaki from displaying error codes while eliminating the valve circuitry.
  • For race applications only

Description

If you're looking to drop some weight from your Kawasaki Ninja 400, Z400, or Ninja 500 and help get the most accurate air / fuel tune, ditching the air induction system is the right move. This emissions block off plate caps the AIS system to prevent uncontrolled secondary airflow and enabling you to accurately fine tune your Kawasaki. We include everything you need to accurately and correctly remove the system. We include the CNC machined block off plate which features a durable black anodized finish, rubber plug, and PAIR AIS Eliminator Circuit plug which prevents your Kawasaki from displaying errors. All of these components create an easy to use kit that completely removes your stock Kawasaki AIS system.

Please note this item is for race applications only and may not comply with the laws and regulations in your area. See our Terms & Conditions for more information.

  • TST emission block off plate
  • Stainlees steel installation hardware
  • Rubber plug
  • PAIR AIS circuit plug
  • 1 Year Warranty (See our warranty policy here)
warning

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

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