The WORX program by TST Industries has pushed to achieve the maximum power gains out of the 321cc Yamaha R3 engine, resulting in an ASRA MOTO3 National Championship and a bench full of trophies. As part of that effort, modifying the airbox to enable more airflow to the engine proved to be a key component to our success, and now you can do the same to your Yamaha R3 in your strive for track day dominance. Both left and right airbox covers are precision-cut and hand-finished and easily install using the OEM hardware. When combined with a high-flow air filter, full exhaust system, and proper tune, our exclusive WORX Airbox Covers play an important role in improving the performance of your R3 engine across the entire RPM range.
* This kit works best when paired with a high-flow race air filter, exhaust system, and ECU Flash, all available right here on TocePerformance.com!MWR Filters may be shipped directly from supplier