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

Vehicle Fitment

• 2021-2024 Suzuki GSX1300R Hayabusa 1340 (All trims, stock airbox)

Fitment Notes

• Direct replacement - installs in OEM airbox without modifications

Features

• High-flow multi-layer cotton gauze media to boost airflow and engine performance
• Pleated media offers large filtration area for extended service intervals
• Application-specific base seal and sealing bead for precise OEM-style fit
• Washable & reusable - reduces long-term maintenance costs
• Pre-oiled and ready to install right out of the box
• Low restriction design improves throttle response and engine breathing
• Durable construction built for demanding motorcycle use
• No fuel system or intake modifications required

Specifications

• Filter Shape: Panel
• Material: Multi-layer cotton gauze
• Height: 1.5 in (38 mm)
• Washable / Reusable: Yes
• Weight: ~1.2 lb (0.5 kg)
• Filter Re-oiling Amount: ~1.02 oz (30 ml)
• Package Quantity: 1x air filter

Included Components

• 1x K&N SU-1321 Air Filter (pre-oiled, ready to install)

Product Description

The SU-1321 Air Filter from K&N is a high-flow, washable replacement for the stock air filter in 2021-2024 Suzuki GSX1300R Hayabusa 1340 motorcycles. Its cotton-gauze pleated design greatly increases the filtration surface area, enabling improved airflow and reducing intake restriction - which can enhance throttle response, acceleration, and overall engine performance while still maintaining excellent filtration and engine protection.

Installation is simple: SU-1321 fits directly into the OEM airbox without modifications and comes pre-oiled and ready to use. Its reusable construction reduces long-term maintenance and replacement costs, making it a cost-effective upgrade for riders seeking performance, longevity, and reliability in their Hayabusa's intake system.