No Toil Super-Flo Air Filter Kit SFK12046 — Honda CRF250R / CRF450R / CRF450X 2003-2020

No Toil Super-Flo Air Filter Kit SFK12046 — Honda CRF250R / CRF250X / CRF450R / CRF450X 2003-2020

Product Description

Ditch the air-restricting factory setup and push your engine's intake capacity to the limit with the No Toil Super-Flo Air Filter Kit. Factory intake configurations use a restrictive metal mesh backfire screen built directly into the filter cage. While it prevents backfire flames, it severely chokes your engine's air supply. The Super-Flo kit replaces that restrictive stock unit with an open-flow, screenless cage configuration that delivers more air directly to the combustion chamber for an immediate jump in throttle response and overall horsepower.

Engineered out of an ultra-tough, space-age polymer matrix, the Super-Flo cage is built to sit perfectly flush against the airbox track, ensuring a tight, debris-proof seal. To safely eliminate the restrictive stock screen, No Toil combines this high-flow cage with a specialized dual-stage foam filter featuring a built-in, fire-resistant inner laminate layer. This configuration stops backfire embers dead in their tracks without interrupting critical air velocity.

Top Features: No Toil Super-Flo Kit

• Screenless Power Gains: Replaces the restrictive OEM mesh backfire screen with an open-chamber cage layout to maximize air induction capacity.
• Flame-Retardant Technology: Specialized inner foam matrix prevents engine backfires from igniting the filter structure, keeping machine and rider fully protected.
• Space-Age Polymer Cage: High-rigidity composite frame maintains its form under extreme engine vacuum while securing a dependable airbox perimeter seal.
• No Toil Speed Knob Included: Comes complete with an ergonomic, heavy-duty mounting bolt for fast, tool-free filter replacement intervals.

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Sub-Model
2004-2018, 2020	Honda	CRF450X
2004-2008	Honda	CRF250R
2004-2008	Honda	CRF250X
2003-2008	Honda	CRF450R

Frequently Asked Questions

Q: Does this kit include a pre-oiled filter, or do I need to oil it myself?
A: This Super-Flo kit includes a pre-oiled, premium dual-stage foam filter that is ready to drop straight into your airbox out of the packaging. It uses No Toil’s iconic biodegradable, water-washable filter treatment.

Q: Can I use standard petroleum-based filter oils and solvents on this replacement filter?
A: No. No Toil filters are explicitly optimized for use with No Toil water-soluble bio-oils and cleaners. Harsh chemical solvents or traditional petroleum oils can compromise the specialized foam bonding glues and the flame-retardant internal liner over time.

Expert Pro-Tip: When installing your Super-Flo cage, run a thin bead of waterproof rim grease along the sealing lip of the foam filter base. While the polymer cage delivers excellent surface pressure, the rim grease acts as an added insurance policy against ultra-fine silt, dust, and water bypass when racing through deep powder sand or heavy dust clouds.

Recommended Pairings:
o Honda CRF250R Performance Parts & Upgrades
o Honda CRF450R Performance Parts & Upgrades
o No Toil Air Filter Cleaners & Lubricants

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