K&N Replacement Air Filter (33-2865) BMW M140i(x) F21 The construction of the hose

The construction of the hose has been engineered to exceed that of the OEM fitments

PFF16-502 Front Arm Rear Bush

round K&N embossed chrome-topped high-flow air filter that installs onto the factory mass air sensor within the previous air box space

Outside diameter 41mm

The Integrated water/methanol port or boost take off port is supplied with a blanking plug help to give further options for your build as you look to modify it further – much like the future proofing we included in the turbo inlet adaptors on our RS3 induction kit FMINDK47

K&N Replacement Air Filter (33-2865) BMW M140i(x) F21 The construction of the hoseK&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's No Hassle Lifetime Limited Warranty. K&N drop in replacement filters are designed to install easily into your