aFe Stage 1 Cold Air Intake Kit BMW E39 540i Variations:aFe Stage 1 Intake Pro 5 R Oiled Filter E39 540i a serious work of art

a serious work of art

Tested and used on the Time Attack

No stock components are reused post catalytic converter

end tanks are welded to high density bar and plate intercoolers before the entire assembly is pressure tested

aFe Stage 1 Cold Air Intake Kit BMW E39 540i Variations:aFe Stage 1 Intake Pro 5 R Oiled Filter E39 540i a serious work of artThis 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