aFe Power • MSRP: $54.95
Advanced Flow Engineering has released its Magnum Flow air filter for the 2005-10 BMW X3 and 2006-08 BMW Z4 fitted with the naturally aspirated 3.0L engine. Designed with deep, rounded pleats it is claimed to offer increased airflow as well as an increased filtration area for better engine protection. The soft urethane frame seals the filter to provide a leak-free seal inside the factory air box. The overall affect is said to improve throttle response and increase gas mileage.