aFe Magnum FLOW Round Racing Air Filter w/ Pro 5R Media (18-11418) 4006 Increased pipe diameter to 2

Increased pipe diameter to 2

This section replaces the factory BMW Section 1

Delivering a significant increase in CFM from the factory system which

Borla stands behind every system with a Million-Mile Warranty

Includes a fitting for hooking up the air-injection too

aFe Magnum FLOW Round Racing Air Filter w/ Pro 5R Media (18-11418) 4006 Increased pipe diameter to 2Magnum Flow Racing Pro 5R Round Blue Air Filter with Expended Metal (18 11418) by aFe. Constructed with 100% polyurethane on top and bottom, this high flow, oiled OE replacement performance filter will outflow stock paper filter for improved horsepower and torque. Five layers of progressively finer mesh cotton gauze media provide maximum airflow for best performance results. Washable and reusable for multiple cleaning cycles, the tall open evenly