The MMX Performance Panel Air Filter is a simple, cost-effective, and warranty-friendly upgrade for B48-engined BMW F4X and MINI F5X / JCW / GP3 platforms. Designed to drop straight into the OE airbox, this washable, reusable cotton-gauze filter delivers improved airflow, beautiful induction noise, and excellent filtration without changing a single bracket.

By removing the inevitable restrictions imposed by the standard paper element, the MMX panel filter allows a small but worthwhile increase in airflow through to the turbo. Better breathing translates to improved engine efficiency, and the cotton gauze media catches contaminants without choking the intake tract, protecting the engine while letting it perform at its best.

Crucially, this is a no-compromise upgrade. The filter retains the OE airbox, OE intake tubing, and all factory sensor positions, so check-engine lights and warranty concerns simply don’t enter the equation. And because it’s washable and reusable, you can clean and re-oil it rather than replacing it, saving money and waste over the life of the car.

Choose the variant that matches your engine: MMR01-0901 fits the B48E “306HP” applications including F40 M135i, F44 M235i, and the MINI GP3. MMR01-1302 fits the B48 MINI Cooper S / JCW applications. Both deliver the same drop-in performance benefit tuned to their respective intake architecture.

Product Details

• Drop-in replacement for the OE paper panel filter
• Warranty-friendly: no piping or tuning changes required
• Two variants: choose by engine application:
• MMR01-0901: B48E BMW / MINI 306HP Models (F40 M135i, F44 M235i, MINI GP3, etc.)
• MMR01-1302: B48 MINI Cooper S / JCW (non-GP3)

What’s Included

• One MMX cotton-gauze panel air filter

Notes

• Also fits the F44 2-Series Gran Coupe M235i xDrive and the MINI F56 JCW GP3, please contact us to confirm fitment for these models.
• Confirm your engine code (B48 or B48E) and vehicle application before ordering, the two variants are not interchangeable.
• The filter is washable and reusable: clean and re-oil per the included service interval rather than replacing.
• Includes a 1-year manufacturer warranty against defects in materials and workmanship
• Designed and tested in the United Kingdom
• View emissions compliance notice