BMC cotton air filter for original airbox 421/01

The BMC cotton air filter, designed to fit the original 421/01 airbox, is the ideal choice for anyone seeking optimised performance. BMC Air Filters stands out as a pioneer in the design, development and production of high-performance air filters and direct induction systems. With a team of experienced engineers and technicians, the company has excelled in airflow analysis and management for many years. These filters are not only cleanable and reusable, but also provide a noticeable increase in engine torque and power while reducing fuel consumption.

Its extensive expertise in intake, acceleration and gas flow management enables BMC to work with the most prestigious teams in disciplines as varied as F1, Rally and Endurance. To ensure maximum filter longevity, remember to use the recommended care products: WAFLU200 oil and WADET500 detergent.

Filter compatibility with BMW models:

• BMW 5 (E60, E61) 520i E60, E61 170 CV Year: 07 > 10
• BMW 5 (E60, E61) 540i E60 306 CV Year: 05 > 10
• BMW 5 (E60, E61) 545i E60, E61 333 CV Year: 03 > 05
• BMW 5 (E60, E61) 550i E60, E61 367 CV Year: 05 > 10
• BMW 6 (E63, E64) 645Ci E63, E64 333 CV Year: 03 > 05
• BMW 6 (E63, E64) 650Ci E63, E64 367 CV Year: 05 > 11