TST Industries, LLC

TST WORX Airbox Cover for Yamaha YZF-R3 / MT-03 2025+

Sale price$47.99
SKU: R3AFC
TST WORX Airbox Cover for Yamaha YZF-R3 / MT-03 2025+
What's included in the TST WORX Airbox Cover kit for the 2025+ Yamaha YZF-R3 / MT-03
Simple bolt-on installation uses the stock hardware for a hassle-free process.
Increase the airflow of your 321cc R3 / MT-03 engine with the TST WORX Airbox Cover modification.
Compare power figures of a 2025 Yamaha R3 / MT-03 with WORX and OEM airbox covers.

Upgrade the airflow of your 2025+ Yamaha YZF-R3 / MT-03 with the TST WORX Airbox Cover. Designed for a simple bolt-on installation, this performance upgrade enhances airflow to the engine, setting the stage for noticeable performance gains. For maximum results, combine it with our TST WORX Velocity Stacks and a Stage 2 tune.


Applications:

  • Yamaha YZF-R3 | 2025, 2026
  • Yamaha MT-03 | 2025, 2026

TST Industries, LLC

TST WORX Airbox Cover for Yamaha YZF-R3 / MT-03 2025+

Sale price$47.99
SKU: R3AFC

Upgrade the airflow of your 2025+ Yamaha YZF-R3 / MT-03 with the TST WORX Airbox Cover. Designed for a simple bolt-on installation, this performance upgrade enhances airflow to the engine, setting the stage for noticeable performance gains. For maximum results, combine it with our TST WORX Velocity Stacks and a Stage 2 tune.


Applications:

  • Yamaha YZF-R3 | 2025, 2026
  • Yamaha MT-03 | 2025, 2026
Quantity:
Make an awesome bundle with your TST WORX Airbox Cover for Yamaha YZF-R3 / MT-03 2025+
TST WORX Airbox Cover for Yamaha YZF-R3 / MT-03 2025+ TST WORX Velocity Stacks for Yamaha R3 / MT-03 2025+ $167.98

This product is part of our WORX program. Learn more.

This product 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.

Features

  • Provides additional airflow to your R3 / MT-03 engine for better performance without needing to permanently modify your airbox
  • Provides 2.5% - 3.0% increase in mid-range power on a properly tuned bike
  • Sintered construction ensures precise fitment
  • Includes left side cover
  • Can be used with side fairings installed while maintaining ample airflow
  • Compatible with all OEM and aftermarket air filters designed for the Yamaha R3 / MT-03
  • Reuses OEM hardware during installation
  • Can remove the stock airbox snorkel if desired
  • Should be paired with high-flow air filter, WORX Velocity Stacks, full-system exhaust, and TST WORX Stage 2 Tune for best results

Description

Gain more performance from your Yamaha R3 or MT-03 with a simple, bolt-on upgrade. The TST WORX Airbox Cover is a direct replacement for the restrictive factory cover, engineered to deliver increased airflow for measurable gains - up to 2.5-3% more midrange power on a properly tuned setup. Designed to complement our TST WORX Velocity Stacks, TST WORX Stage 2 ECU Tune, high-flow air filter, and an aftermarket full system exhaust, this upgrade helps your 321cc engine deliver improved torque and power where it counts. Best of all, installation is fully reversible, meaning there's no cutting or permanent changes, just straightforward performance with the option to return to your stock configuration anytime you may need.

* This kit works best when paired with a high-flow race air filter, exhaust system, velocity stacks, and a proper tune.

  • (1) TST WORX Airbox Cover (left only)

Q: Can I install this without making any other changes to my bike?

A: Sure you can, but to really get the proper benefits of this modification, you'll need to pair this with a full exhaust, high-flow air filter, velocity stacks, and a proper tune. Failure to tune your bike may cause it to run outside of safe parameters.

Q: Do I have to leave the side fairings off like in the photos?

A: No - The side fairings can be reinstalled while maintaining the additional airflow. Panels were left off for demonstration photos only.

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

Features

  • Provides additional airflow to your R3 / MT-03 engine for better performance without needing to permanently modify your airbox
  • Provides 2.5% - 3.0% increase in mid-range power on a properly tuned bike
  • Sintered construction ensures precise fitment
  • Includes left side cover
  • Can be used with side fairings installed while maintaining ample airflow
  • Compatible with all OEM and aftermarket air filters designed for the Yamaha R3 / MT-03
  • Reuses OEM hardware during installation
  • Can remove the stock airbox snorkel if desired
  • Should be paired with high-flow air filter, WORX Velocity Stacks, full-system exhaust, and TST WORX Stage 2 Tune for best results

Description

Gain more performance from your Yamaha R3 or MT-03 with a simple, bolt-on upgrade. The TST WORX Airbox Cover is a direct replacement for the restrictive factory cover, engineered to deliver increased airflow for measurable gains - up to 2.5-3% more midrange power on a properly tuned setup. Designed to complement our TST WORX Velocity Stacks, TST WORX Stage 2 ECU Tune, high-flow air filter, and an aftermarket full system exhaust, this upgrade helps your 321cc engine deliver improved torque and power where it counts. Best of all, installation is fully reversible, meaning there's no cutting or permanent changes, just straightforward performance with the option to return to your stock configuration anytime you may need.

* This kit works best when paired with a high-flow race air filter, exhaust system, velocity stacks, and a proper tune.

  • (1) TST WORX Airbox Cover (left only)

Q: Can I install this without making any other changes to my bike?

A: Sure you can, but to really get the proper benefits of this modification, you'll need to pair this with a full exhaust, high-flow air filter, velocity stacks, and a proper tune. Failure to tune your bike may cause it to run outside of safe parameters.

Q: Do I have to leave the side fairings off like in the photos?

A: No - The side fairings can be reinstalled while maintaining the additional airflow. Panels were left off for demonstration photos only.

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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