K&N Replacement Air Filter (33-2944) 5x112 The K&N 57-3022-2 FIPK air

The K&N 57-3022-2 FIPK air intake system replaces your vehicle's restrictive factory air filter and air intake housing

Replaces entire factory air intake system

The boost pipes are a direct replacement to the original hot-side charge pipe which is rather restrictive especially at the turbo end

Not sure if this fits your M3 E46

Position: Front Axle

K&N Replacement Air Filter (33-2944) 5x112 The K&N 57-3022-2 FIPK airK&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