K&N High Flow Air Filter for Yamaha YZF R3/ MT 03 - YA-3215

K&N High-Flow Air Filter | Yamaha YZF-R3 & MT-03 (YA-3215)

The YA-3215 is the essential performance upgrade for Yamaha’s class-leading 321cc parallel-twin. Designed to replace the restrictive factory paper element, this filter allows your R3 or MT-03 to breathe more efficiently, supporting the engine’s high-revving nature and sharpening throttle response for both street and track use.

Key Features

• Optimized Airflow: Engineered to provide up to 50% more airflow than standard paper filters. This helps the engine maintain peak power, especially at higher RPMs where the parallel-twin truly comes alive.

• Premium Engine Protection: Utilizes K&N’s signature multi-layered oiled cotton gauze media, designed to achieve up to 99% filtration efficiency to keep your cylinder walls safe from dust and debris.

• Washable & Reusable: A permanent "Lifetime" upgrade. Instead of discarding filters at every major service, simply wash, re-oil, and reinstall the YA-3215. It is designed to last the life of your motorcycle.

• Direct Drop-In Fit: Precision-molded to fit the factory airbox perfectly. Installation typically takes less than 10 minutes and requires no modifications to the bike or its fueling system.

• Enhanced Intake Sound: Provides a more aggressive intake growl under acceleration, complementing the R3’s sporty character without being overly loud.

Technical Specifications

Why Choose K&N for your R3 / MT-03?

The Yamaha 321cc engine is a high-performance unit that thrives on air velocity. Stock filters are often designed for maximum noise suppression, which can slightly dull the engine's "snap." The YA-3215 removes this bottleneck, providing a crisper throttle feel and a more rewarding power delivery, making it one of the most popular first modifications for R3 and MT-03 owners.