BMC Replacement Air Filter Yamaha YZF-R6 RJ11 (2006-2007) FM450/04

Engineered with knowledge drawn directly from motorsport, the BMC replacement air filter FM450/04 is a precise drop-in upgrade for the Yamaha YZF-R6 RJ11 (2006-2007) that delivers all-day engine confidence — whether you're commuting, touring or pushing hard on a Sunday blast. Its four-layer oiled cotton construction breathes more freely than a standard paper element, letting your inline-four pull cleaner, denser air on every run while keeping harmful particles well away from the combustion chambers.

Key Features

• Four-layer cotton gauze construction soaked in a low-tack oil for the ideal balance of airflow and filtration efficiency
• Aluminium mesh layer shields the cotton media from petrol vapours and oxidation, keeping the filter structurally sound over years of use
• Rubber frame prevents cracking or distortion, ensuring a consistent, leak-free seal in the airbox every time
• Washable and reusable design — a single filter replaces multiple disposable paper elements over its service life
• Minimised pressure drop across the filter translates to improved throttle response and a more linear power delivery
• Tested to international filtration standards for proven quality and long-term performance

Built for the Long Haul

The BMC FM450/04 is not a one-season consumable. Its rubber-rimmed housing holds shape through heat cycles and vibration, while the aluminium mesh acts as a structural backbone that resists the sort of petrol-vapour degradation that shortens the life of lesser aftermarket filters. When the filter eventually needs attention, a dedicated BMC cleaning kit restores it to as-new specification — no need for costly replacements on a tight service schedule.

Airflow and Filtration in Balance

A common misconception about performance air filters is that increased airflow must come at the expense of filtration. BMC's layered cotton-and-oil system challenges that trade-off directly. The four progressive layers of cotton gauze trap progressively finer contaminants as air travels through the media, while the low-viscosity oil coating captures microscopic particles without restricting the volume of air reaching the throttle bodies. The result is a cleaner engine environment and a more responsive ride, maintained consistently across the filter's extended service intervals.

Fitment and Compatibility

This filter is a direct OEM replacement for the following model:

• Yamaha YZF-R6 RJ11 — model years 2006 and 2007

No airbox modification is required. The rubber frame is dimensioned to match the original filter housing exactly, making installation straightforward with standard workshop tools.

Specifications