Fabspeed BMW (G20) M340i BMC F1 Replacement Air Filter

If you want more airflow but plan to keep the factory airbox, this is the simple route. The BMC F1 filter drops straight into the stock M340i airbox in place of the paper element, giving the turbo a steadier supply of clean air.

What you get

• Drop-in fit in the OEM airbox, with no other changes needed.
• Full-molded soft rubber frame that seals tightly against the airbox and won't crack or break.
• Washable cotton media that BMC says flows close to 40% more than a paper filter.
• Alloy mesh screen that holds the filter's shape and stops larger debris.

Brand: Fabspeed · Part #: FS.BMW.M340.BMC

• Ships from the brand or distributor, usually in 3–7 business days.
• Shipping is charged at the carrier's rate, shown at checkout. Orders over 70 lb ship by freight for a flat $99.
• Unused parts can be returned within 30 days. Some items are marked no-refund in their description.

Full details are on our shipping and returns page.