K&N 2021-2024 Suzuki GSX1300R /Hayabusa Replacement Air Filter

K&N SU-1321 Air Filter | 2021-2024 Suzuki GSX1300R Hayabusa High-Flow

Upgrade your Gen 3 Hayabusa with the K&N SU-1321 high-flow air filter. Boost horsepower, throttle response, and airflow with a washable, reusable lifetime filter.

(SU-1321) is engineered to unlock maximum power and throttle response for the Gen 3 Suzuki Hayabusa. Built using multiple layers of oiled, pleated cotton gauze media sandwiched between aluminum wire mesh, this filter delivers significantly lower intake restriction than disposable factory paper filters while maintaining superior filtration.

Designed as a direct drop-in replacement for the OEM airbox, the SU-1321 requires no fuel system or intake modifications. It comes pre-oiled from the factory, making installation fast and hassle-free. Because it is fully washable and reusable, this is the last air filter your Hayabusa will ever need, backed by K&N’s legendary 10-Year / Million-Mile Limited Warranty.

Best Uses

1. High-Performance Street Riding: Enhances intake airflow and throttle response for crisp acceleration out of corners.
2. Long-Distance Touring: Delivers extended service intervals (up to 50,000 miles under normal conditions before cleaning).
3. Track Days & Drag Racing: Maximizes engine breathing under high-RPM loads.
4. Cost-Conscious Maintenance: Replaces disposable stock paper filters with a washable, lifetime solution.

Features

1. Multi-Layer Cotton Gauze Media: Features oiled, woven cotton gauze layers to maximize air volume while trapping fine contaminants.
2. Pleated Filter Design: Maximizes the overall surface area, providing high-capacity dust retention and long service intervals.
3. Application-Specific Base Seal: Designed with a precise sealing bead tailored for the 2021–2024 Hayabusa OEM airbox to prevent air bypass.
4. Pre-Oiled Drop-In Fit: Ready to install right out of the box with zero modifications or retuning required.
5. Washable & Reusable Construction: Durable structure designed to be cleaned, re-oiled, and reused for the life of the motorcycle.

Benefits

1. Increased Power & Acceleration: Improves airflow to help maximize engine horsepower and torque performance.
2. Sharper Throttle Response: Reduces intake air restriction, allowing the 1340cc engine to breathe freely and respond faster.
3. Long-Term Savings: Eliminates the need to buy disposable paper filters every service cycle.
4. Exceptional Engine Protection: Multi-layer filtration safeguards engine components against harmful dirt and debris.
5. Eco-Friendly Choice: Reduces maintenance waste by keeping old paper filters out of landfills.  

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