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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FREE SHIPPING OPTION FOR DOMESTIC ORDERS:

U.S. customers are offered a free shipping option for orders with a discounted subtotal greater than $250.00 (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 WORX Airbox for Suzuki GSX-8R / GSX-8S - MotoAmerica Spec

  • TST WORX Airbox for Suzuki GSX-8R / GSX-8S - MotoAmerica Spec
  • Feature MotoAmerica spec velocity stacks specifically designed for fully-built Twins Cup race bikes.
  • Gain top-end performance and pull away from the pack with TST WORX.
  • Improve your Suzuki GSX-8R or GSX-8S performance with the TST WORX Airbox.
  • Carbon fiber construction features a gloss clear coat for UV protection and high-end style.
  • Installs with no permenant modifications and replaces the stock airbox assembly on the Suzuki GSX-8S / GSX-8R.
  • The smaller and more efficient airbox design enables use with standard rear shocks with a piggyback reservoir design.

TST WORX Airbox for Suzuki GSX-8R / GSX-8S - MotoAmerica Spec

TST WORX Airbox for Suzuki GSX-8R / GSX-8S - MotoAmerica Spec

Elevate your race setup with the MotoAmerica homologated TST WORX Airbox. This kit is designed to be paired with a fully built motor and aftermarket ECU and provides a critical performance component that can be key to shaving seconds off your lap times.

Applications:

  • Suzuki GSX-8S | 2023, 2024, 2025
  • Suzuki GSX-8R | 2024, 2025

MOTOAMERICA SPEC: This airbox is NOT intended to be used with the OEM engine configuration. This airbox is designed specifically for MotoAmerica specification race bikes with fully built motors, aftermarket ECUs, and team development support. Please click HERE to find our WORX Airbox that is compatible with the stock engine and flashed OEM ECU.

This item is not eligible for discounts.

This product is part of our Worx Program!

Learn More!
Have a Question About This Product?
SKU 23GSX8AB=1
2024 +/GSX-8R/Suzuki
TST WORX Airbox for Suzuki GSX-8R / GSX-8S - MotoAmerica Spec
 
Price: $599.99
I understand that this is for MotoAmerica spec race bikes ONLY
Quantity

ATTENTION:

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

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MOTOAMERICA SPEC | CLOSED COURSE APPLICATIONS ONLY
This airbox was designed and intended for closed-course competition use ONLY. This product is neither designed nor intended for use on public roads or land and it is against Federal and State regulations to do so.

  • Product Details
  • What's Included
  • Recommended Accessories
  • FAQs

Airbox Features

  • Homologated by MotoAmerica for Twins Cup teams
  • Replaces the entire stock airbox with a race-developed design
  • Designed specifically to increase top-end power
  • Carbon fiber construction with sintered nylon velocity stacks
  • High-quality carbon fiber features a gloss clear coat for UV protection
  • Reusable high-flow foam filter provides ample airflow with reliable protection
  • Bolt-on installation
  • Reuses the stock IAT (Intake Air Temperature) sensor for ease of installation
  • Enables use of rear shocks with standard piggyback reservoirs
  • Developed and manufactured exclusively by the TST Industries WORX Racing Program

Description

Our TST WORX division has made huge strides in unlocking additional performance gains from Suzuki's 776cc parallel-twin motor, and this MotoAmerica homologated TST WORX Airbox can help your team do the same! This airbox houses specifically chosen velocity stacks that differ from our non-MotoAmerica Spec WORX Airbox. It produces slightly less power throughout the rev range below 9000 RPM; however, above 9000 RPM, it excels—making it incredibly beneficial for high-end racing when paired with an aftermarket ECU that enables higher rev limits and accommodates internal engine modifications. The velocity stacks are housed in a premium carbon fiber shell and are protected by a high-flow reusable foam filter. The smaller form factor enables the installation of piggyback rear shocks, ensuring your race setup is no longer limited to remote reservoir shock options.

Installation note: We recommend removing the AIS and charcoal canister as this airbox does not feature a hose inlet for the AIS system. If you do not want to remove them, simply plug the hose coming off of the AIS and either secure it to a surrounding structure or let it hang freely.

We highly recommend checking the air filter after each race weekend or every 10 - 20 hours (whichever comes first). Depending on air conditions, this may mean cleaning and re-oiling after each weekend to ensure optimal engine protection and airflow.

This item is not eligible for discounts.

MotoAmerica is a registered trademark by MotoAmerica and has all rights reserved. TST Industries, LLC. makes no claim of partnership or ownership. Use of the term MotoAmerica is to state that this item has been homologated by MotoAmerica and is approved for use within the Twins Cup.

  • (1) TST WORX Airbox - MotoAmerica Spec
  • Necessary installation hardware
Q: What does "MotoAmerica Spec" mean exactly?
A: MotoAmerica Spec means that the configuration of the stacks within the airbox have been specifically designed and chosen for MotoAmerica teams competing in the Twins Cup. These teams have fully built motors, aftermarket ECUs, full race wire harnesses, etc. at their disposal and are able to take advantage of this specific airbox configuration.

Q: Can I get this even if I don't have a fully built motor or have a MotoAmerica bike?
A: We aren't going to send the cops to your door, but without the other MotoAmerica parameters built around this airbox, you will see less performance gains than if you had purchased our non-MotoAmerica spec Airbox that is available HERE.

Q: How long will it take for me to receive this once you receive my stock ECU?
A: Our handling time is 1-2 business days, and the shipping time varies based on the shipping method selected. To learn more about shipping times, please see the articles in our Terms & Conditions regarding domestic and international shipping here.

Q: I'm located outside of the United States. Will I have to pay duties on this item?
A: Some countries charge additional fees when a package is imported and delivered to the recipient. We have no way of knowing or estimating what these fees will be. It is the buyer's responsibility to cover these additional costs.

Q: What is your return and warranty policy?
A: Please read over our policies thoroughly on our terms and conditions page BEFORE making your purchase.
TST Industries Terms and Conditions
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TST Programmable And Sequential LED Integrated Tail Light For Yamaha MT-09 2021-2023
TST Programmable And Sequential LED Integrated Tail Light For Yamaha MT-09 2021-2023
I love it. Can't stop looking at it every time I get off the bike :) Great product, feels and looks high quality. It is very bright even in bright daylight. Installation was not a problem, also there is a very comprehensive video on it by TST. Highly recommend to every owner of MT09 to buy it, it's well worth the money! Great job guys!
Vlad Presada
Jul 6, 2025
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