Dinan High Flow Drop-in Replacement Air Filter - 2020-2025 BMW X3 M40i/X4 M40i

OVERVIEW

A direct-fit upgrade for the factory air box on the B58-powered G01 X3 M40i and G02 X4 M40i. The Dinan High Flow Drop-in Replacement Air Filter improves airflow over the restrictive stock paper element for better performance and efficiency — no cutting, no intake swap. Four layers of oiled cotton gauze flow better with less pressure drop than stock media, and the filter is washable and reusable, saving money over disposable replacements.

SPECS

• 4-layer oiled cotton gauze media
• Better flow / lower pressure drop than stock paper element
• Washable and reusable
• Direct drop-in — uses factory air box, no modification
• Compatible with stock air box: G01/G02 (B58)

PARTS INCLUDED

• 1x Dinan high-flow drop-in air filter

TECH RESOURCES

• Prefer a full intake? See our Dinan Cold Air Intake for X3/X4 M40i
• Drop-in filter — no installation document required.

PART NUMBER

• D401-0049

VEHICLE APPLICATIONS