CarBahn
B58 High Flow Replacement Intake Air Filter | BMW M240i/M340i/M440i
B58 High Flow Replacement Intake Air Filter | BMW M240i/M340i/M440i
Couldn't load pickup availability
B58 High Flow Replacement Intake Air Filter
Give your B58 the airflow it deserves—without changing the factory look. The CarBahn High Flow Replacement Air Filter is a direct drop-in upgrade for the OEM airbox, engineered to reduce restriction while maintaining strong filtration characteristics for confident daily driving and spirited pulls.
Why you’ll feel it
- Less restriction, more breathing room: Improved airflow through the stock airbox helps the turbo work more efficiently.
- OEM-style fitment: Drop-in design—no cutting, no tuning, no drama.
- Protection you can trust: Designed for performance airflow with filtration characteristics comparable to OEM intent.
- Smart, cost-effective upgrade: One of the simplest ways to support intake flow on a B58 build.
Installation
Installs in minutes in your factory airbox. Simply remove the old filter (paper & carbon filter) and drop in the new one.
Fitment
Fits B58-equipped BMW platforms listed on this product page, including: M240i / M340i / M440i / Z4 M40i (RWD & xDrive where applicable) across G20, G22, G26, G29, G42.
Product details
- CarBahn Part Number: CBB01-00-9306
- OEM Equivalent: 13-71-8-635-102
- Engine: B58
Tip: Pair this with your other CarBahn intake/cooling upgrades for a well-rounded, OEM+ flow path.