K&N Replacement Air Filter (33-2222) BMW > 1 Series > E82 2Dr Coupe 2007-2013 > 1M 2011-2012 (N54) this kit will offer a

this kit will offer a significant improvement over the original air box

This unique spring design will also allow for unrestricted piston travel and flow volume regardless of the amount of pre-load adjustment added to the spring

Easy install with perfect fitment

failure at high boost and leaks between the core and end tanks with end tank seal failure

Will not corrode

K&N Replacement Air Filter (33-2222) BMW > 1 Series > E82 2Dr Coupe 2007-2013 > 1M 2011-2012 (N54) this kit will offer aK&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