This air intake system produces 10 max horsepower, 14lbs. x ft. torque and out-flowed the factory intake by 62%. Includes a durable 16 gauge, powder-coated heat shield; this air intake system features a washable/reusable conical air filter that improves airflow. This intake system incorporates a unique 3-angle filter adaptor that smooths air transition into the intake tract for better performance. One-piece heat shield requires little or no assembly and the filter is constructed with 100% polyurethane for long life and multiple cleaning cycles.

5-1/2 Conical Filter with Inverted Top: This intake utilizes a huge, 5-1/2" conical Pro 5R performance air filter with inverted top for maximum flow. This 5-layer progressive, oiled cotton gauze air filter provides maximum flow for increased horsepower and torque.

One-Piece Filter Housing: The air filter is housed in a one-piece, black powdercoated 16-gauge heat shield that keeps warm engine air out for maximum performance. This one-piece heat shield uses factory mounting locations and comes with all hardware for a hassle-free installation.

3-Angle Adaptor: A 3-angle adaptor is used to speed up the air flow for improved performance and throttle response.

BMW 5 Series E39 540i M62 V8 4.4L (1997-2003)

Dyno Graph (Click to Enlarge)

51-10471 (Pro Dry S)

54-10471 (Pro 5R)

Manufactured by

aFe 

Warranty

1 year warranty