K&N Replacement Air Filter (33-2079) BMW > 1 Series > F20/F21 2012 Onwards > 120i 2016 Onwards (B48) Why do we use silicone

Why do we use silicone

OEM Part Number: 21810 J7000 / 21810 J7200 / 21810 F2000

5T B38 2014 – 2020

This adaptor can also be utilized as a fitting kit for an additional boost gauge with a simple t-piece

K&N Replacement Air Filter (33-2079) BMW > 1 Series > F20/F21 2012 Onwards > 120i 2016 Onwards (B48) Why do we use siliconeK&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