Twin Air Pre-Oiled Air Filter for Yamaha - Fits YZ250FX (15-19), YZ250F (14-18), YZ450FX (17-18), YZ450F (14-17), WR250F(15-18) WR 450F(16-18) – Motocross (MX) Foam Filter (OEM Part # 1SL-14451-00-00)
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Twin Air Pre-Oiled Air Filter for Yamaha - Fits YZ250FX (15-19), YZ250F (14-18), YZ450FX (17-18), YZ450F (14-17), WR250F(15-18) WR 450F(16-18) – Motocross (MX) Foam Filter (OEM Part # 1SL-14451-00-00)
Patented Dual-Stage Foam Technology: The outer layer of coarse, open-pore foam captures large airborne particles like dirt, sand, and grime, while the inner fine-pore foam provides secondary filtration to trap microscopic contaminants. This fused dual-layer design eliminates the need for glues or adhesives that can clog over time, maximizing both protection and unrestricted airflow for up to 20% more power compared to stock filters.
Pre-Oiled and Ready to Race: Arrives fully oiled with Twin Air's exclusive red oil formula for immediate installation – no mess, no hassle. The oil enhances filtration efficiency without restricting air intake, keeping your Yamaha's carburetor or fuel-injected system optimized for peak throttle response right out of the box.
Greaseless Sealing Ring: Features a thick, flat foam ring that creates a perfect, breathable seal against your airbox, preventing dust bypass while allowing maximum air passage. This innovative design boosts engine breathing without compromising on contamination control.
Washable and Reusable: Built to last race after race. Simply clean with Twin Air Filter Cleaner/Skinny Spray, re-oil, and reinstall – extending the filter's life far beyond disposable paper alternatives and saving you money in the long run.
Lightweight and Durable Construction: Precision-cut from high-density foam for a glove-like fit in your Yamaha's airbox, reducing weight while withstanding extreme abuse from mud, water crossings, and high-speed jumps.
Pre Oiled Filter is ready to go right out of the box, saving time and hassle, all while being designed to increase airflow while ensuring the highest level of protection from dirt/dust. Dual foam design: Coarse open-pore foam catches airborne dirt, grime and sand, Fine open-pore inner foam acts as a second filter to trap the smallest particles while ensuring maximum air passage. Thick, flat foam, greaseless sealing ring ensures maximum contact with your airbox, while acting as a breathable gasket for increased air passage. Fused outer and inner elements prevent dirt and grime from being lodged between layers while the exclusively formulated adhesive ensures glue seams will not break down. Fits: Yamaha YZ 250F/YZ 450F 2014.