MAD N55 High Flow Air Intake w/ Heat Shield - F22 M235i | F30 335i | F32 435iNOT FOR SALE IN CA. The MAD N55 Intake is a high performance air intake system designed specifically for BMW N55 engines. It is engineered to provide improved airflow to the engine, resulting in increased horsepower and torque, better throttle response, and a more aggressive engine sound. Made from high quality materials, the MAD N55 Intake features a mandrel bent aluminum intake tube that is powder coated for durability and visual appeal. The intake