K&N High Flow Air Filter for Yamaha YZF R1 (2009-2014) - YA-1009

K&N High-Flow Air Filter | Yamaha YZF-R1 (YA-1009)

The YA-1009 is the performance intake upgrade for the "Generation 4" Yamaha R1—the legendary first iteration of the Crossplane (CP4) crankshaft. This filter is specifically engineered to handle the unique, uneven firing pulses of the 998cc engine, ensuring it receives the high-velocity airflow required to produce its signature wall of torque.

Key Features

• Optimized for the CP4 Engine: Engineered to provide up to 50% more airflow than traditional paper filters. This allows the crossplane inline-four to breathe more efficiently, especially during high-load acceleration.

   

• Premium Engine Protection: Utilizes K&N’s signature multi-layered oiled cotton gauze media. It achieves up to 99% filtration efficiency, protecting your engine from dust and debris while maintaining maximum air speed.

   

• Washable & Reusable: A permanent "Lifetime" upgrade. Instead of replacing your filter at every major service, simply wash, re-oil, and reinstall the YA-1009.

• Direct Drop-In Fit: Precision-molded for a perfect, airtight seal in the 2009–2014 R1 airbox. It is a direct replacement for Yamaha OEM part number 14B-14451-00-00.

• Enhanced "Crossplane" Growl: By removing the intake restriction, the YA-1009 amplifies the visceral, deep-toned intake note that makes this generation of R1 sound like a MotoGP bike.

Technical Specifications

Why Choose K&N for your 2009–2014 R1?

The 2009–2014 R1 is famous for its mechanical "grunt" and linear power delivery. However, the stock airbox was designed heavily with noise suppression in mind, which can cause a slight delay in throttle response. The YA-1009 "uncorks" the intake path, providing a crisper throttle snap and better mid-range pull. It is widely considered one of the first "must-have" modifications for owners of this specific R1 generation.