K&N Racing Air Filter Yamaha YZF-R1 RN22 (2009-2014) YA-1009R

The K&N YA-1009R is a dedicated racing air filter engineered specifically for asphalt circuit use on the Yamaha YZF-R1 RN22, covering model years 2009 to 2014. Where standard replacement filters balance filtration and flow for everyday riding, this racing-spec unit prioritises maximum airflow to unlock the full potential of the R1's inline-four under the extreme demands of track competition.

Key Features

• Higher airflow than conventional drop-in replacement filters, delivering measurably sharper throttle response and improved peak power on circuit.
• Developed exclusively for asphalt track use, where conditions and performance targets differ fundamentally from road or off-road applications.
• Excellent filtration efficiency that protects the engine from harmful contaminants without restricting the air supply at high rpm.
• Direct-fit design for the RN22 airbox — no modifications required for installation.
• Part of K&N's established racing lineage, drawing on decades of motorsport filtration heritage to deliver a product serious track riders can trust.

Design, Finish and Heritage

K&N's racing filter range carries a distinctive identity that sets it apart from the brand's road-going catalogue. The YA-1009R is built around K&N's signature oiled cotton-gauze filtration medium — a construction the brand has refined across decades of circuit, drag and endurance racing. The finish and internal construction are optimised for the repeated high-revving cycles a race engine endures, not the intermittent demands of a road commute. That heritage is immediately visible in the filter's build quality and the precision of its sealing surfaces, ensuring the fitment is as clean and reliable as it is performance-driven.

Performance on Track

At race pace the Yamaha YZF-R1 RN22's engine demands a consistent and unrestricted supply of clean air. The YA-1009R raises the ceiling on airflow compared to standard replacement items, translating into crisper throttle response out of slow corners and a more linear power delivery through the midrange and top end. For riders who have already addressed fuelling, exhausts or other engine components, upgrading the air filter is a logical and effective step in the pursuit of maximum circuit performance.

Fitment and Compatibility

This filter is a direct fitment for the following:

• Yamaha YZF-R1 RN22 — 2009, 2010, 2011, 2012, 2013, 2014

Please note: the K&N YA-1009R is designed exclusively for closed asphalt circuit use. It is not approved or intended for road use or off-road applications and should not be fitted to a road-registered motorcycle.

Specifications

• Brand: K&N
• Part number: YA-1009R
• Type: Racing air filter
• Intended use: Asphalt circuit (track only — not road legal)
• Fitment: Yamaha YZF-R1 RN22 (2009–2014)
• Filter medium: Oiled cotton gauze
• Installation: Direct drop-in replacement for OEM airbox