No Toil Air Filter SIZE_4L All metal bushings are case

All metal bushings are case hardened and plated to prevent wear and corrosion

Octane Booster is suitable for both 4-stroke and 2-stroke petrol engines and is safe for use in combination with catalytic converters and tuned engines

- Will not scar bars like aluminium sleeves

Exterior diameter: 127 mm

No Toil Air Filter SIZE_4L All metal bushings are caseFlame laminated Dual Stage Foam Air Filter built with the highest quality materials. No Toil Air Filters are built with the highest quality materials to ensure that they are long lasting. Made with the finest dual stage, flame laminated foam to effectively stop dirt and a high strength glue.