K&N High Flow Air Filter for Yamaha YZF R1 (2002-2003) - YA-1002

K&N High-Flow Air Filter | Yamaha YZF-R1 (YA-1002)

The YA-1002 is the high-performance intake upgrade for the "Generation 3" Yamaha R1. Specifically designed for the first fuel-injected R1 (2002–2003), this filter replaces the restrictive factory paper element to help the 998cc 20-valve engine breathe more naturally, sharpening throttle response and improving mid-range pull.

Key Features

• Optimized for Early Fuel Injection: Engineered to provide up to 50% more airflow than traditional paper filters, ensuring the 5PW-generation engine gets the air volume it needs to optimize the first-gen fuel injection mapping.

   

• Premium Protection: Features K&N’s signature multi-layered oiled cotton gauze media, trapping up to 99% of harmful contaminants while maintaining high air velocity into the throttle bodies.

   

• Washable & Reusable: A permanent "Lifetime" upgrade. Simply wash, re-oil, and reinstall the filter. It typically only needs cleaning every 80,000 km (50,000 miles) under normal highway conditions.

   

• Direct Drop-In Fit: Precision-molded to fit the 2002–2003 R1 airbox perfectly. It is a direct replacement for Yamaha OEM part number 5PW-14451-00-00.

   

• Included Sealing Grease: Comes with a 1oz tube of application-specific sealing grease to ensure a 100% airtight seal within the airbox, preventing any "dirty" air bypass.

   

Technical Specifications

Why Choose K&N for your 2002–2003 R1?

The 2002–2003 R1 is a legendary transitional model—retaining the 5-valve head but introducing fuel injection. The stock intake tract was designed to be quiet, which can lead to a slightly "soft" feeling at partial throttle. The YA-1002 removes this bottleneck, providing a crisper throttle snap and a more aggressive intake growl that complements the high-revving nature of this classic liter-bike.