Dinan High Flow Drop-in Replacement Air Filter for 2018-2019 BMW X3 M40i/X4 M40i

This Dinan filter drops into the factory airbox of the X3 M40i and X4 M40i in place of the paper element. It flows more air with less pressure drop, and because it can be washed and reused, you stop buying new paper filters at every service.

What you get

• Four layers of oiled cotton gauze for better flow than stock paper media.
• Lower pressure drop, so the engine works less to draw in air.
• Washable and reusable while still filtering well.
• Direct drop-in to the factory intake.

Good to know

• A simple step when a full Dinan intake is not an option for your car or budget.

Brand: Dinan · Part #: D401-0043

• 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.