Direct-fit washable foam panel filter for BMW N55B30 engines in F20, F21, F30, F31, F34 and F80 chassis. Drops straight into the stock airbox - no trimming, no mods, no remap.
Triple-layer open-cell foam media: high airflow + genuine filtration, not just noise.
Reusable and washable - clean with kit, oil with MMX-specific fluid, repeat.
Sharpens throttle response and eases turbo spool on fast road or track day use.
Tight-tolerance fitment avoids air leaks; no boost loss, no CELs.
Not a paper filter pretending to be sporty. This one’s built for consistent flow across the rev range - and for owners who’d rather spend on tyres than filters.
