BMW E81 E82 E87 E88 123d BMC Panel Air Filter, N47D20A Engine, Part No. FA054/03

BMC panel filter for the E81/E82/E87/E88 123d - built for the N47D20A diesel, not the N47D20B or N47D20C. Fits factory airbox without trimming, spacers or swearing.

• Stage 1 fast road & daily driver - airflow gain over paper, no ECU remap needed, zero check engine lights
• Pre-oiled cotton gauze with epoxy-coated alloy mesh - handles diesel soot, fuel vapour and UK damp better than generic ‘track day’ filters
• No welded joints; full-moulded rubber frame seals like OEM, but lasts longer and cleans properly
• Search terms this actually matches: BMC FA054/03 for 123d, N47D20A air filter, E87 123d panel filter, diesel fast road air filter, cleanable air filter for N47