The No Toil Super-Flo Kit is a complete replacement for the OEM air filter and cage assembly on select Yamaha motocross and off-road motorcycles. Manufacturer part number SFK18055 and vendor part number 90-18055K identify this application-specific kit, which is designed to provide strong filtration performance while increasing airflow to the engine. The kit includes a high-density polymer filter cage without a backfire screen, allowing air to move freely through the intake system.
At the center of the kit is a premium two-stage, flame-resistant foam air filter. Its dual-stage construction uses two different pore sizes to create additional dust-trapping area and capture fine particles before they reach the engine. The specially treated foam resists flames and sparks and will not continue to burn, providing an added level of protection for demanding riding conditions. Flame-laminated construction heat-seals the foam stages instead of gluing them, helping maintain airflow and filter durability. The light-colored foam also makes it easier to identify areas where filter oil has been applied.
No Toil also replaces the standard OEM filter cage screw with its Filter Cage Screw Thingy. This fastener is designed to provide dependable holding power while offering user-friendly ergonomics during installation and service. The Super-Flo Kit fits the 2023 Yamaha YZ450F; 2024 Yamaha YZ250F, YZ450F and YZ450FX; 2025 Yamaha YZ250F, YZ250FX, YZ450F and YZ450FX; and 2026 Yamaha YZ250F and YZ450F. Verify the motorcycle model and year before installation to ensure proper fitment.
Features:
- Complete replacement kit: Replaces the OEM filter and cage assembly with a high-flow cage, foam filter and retaining screw
- Dual-stage foam: Two different pore sizes provide additional trapping area for fine dust particles
- Flame-resistant construction: Specially treated foam resists flames and sparks and will not hold a flame
- Flame-laminated foam: Heat-sealed filter stages support airflow and durability without glued layers
- High-density polymer cage: Backfire-screen-free design allows increased airflow to the intake
- Light-colored foam: Makes it easier to see where filter oil has been applied
- Filter Cage Screw Thingy: Provides strong retention with user-friendly installation ergonomics
- Fitment: Fits 2023 Yamaha YZ450F; 2024 Yamaha YZ250F, YZ450F and YZ450FX; 2025 Yamaha YZ250F, YZ250FX, YZ450F and YZ450FX; and 2026 Yamaha YZ250F and YZ450F
- Brand: No Toil
- Manufacturer part number: SFK18055
- Vendor part number: 90-18055K
Fitment:
2023 Yamaha YZ450F
2024 Yamaha YZ250F
2024 Yamaha YZ450F
2024 Yamaha YZ450FX
2025 Yamaha YZ250F
2025 Yamaha YZ250FX
2025 Yamaha YZ450F
2025 Yamaha YZ450FX
2026 Yamaha YZ250F
2026 Yamaha YZ250FX
2026 Yamaha YZ450F
2026 Yamaha YZ450FX