Factory air ducts are "passive" meaning they require a vacuum to pull fresh air from the vents to the filters. If your factory box is in tack, air scoops won't do much for your car as the vacuum is strong enough to feed the filters fresh air. If you decided to remove your factory box then upgrade to BMS or other open air intakes, the "passive" air ducts won't feed the filters any fresh air (no vacuum). Adding the scoops with after market intakes will reduce the chance of heat soak and improve performance.
In order to convert the factory air ducts from passive to active, air scoops are required (re-direct the incoming air by 90 degrees).
- Aircraft-grade Aluminum - Made of lightweight powder-coated black aluminum for strength and styling. Don't choose plastic or stamped air intake scoops, they can easily melt from the heat or smell bad.
- Better Throttle Response - Dynamic air scoops provide a better and direct air intake into the intake system. The scoops are especially effective at producing more horsepower at higher speeds.
- Improved throttle response - Increased power and torque.
- Condition: New
- Brand: Bevinsee
- Type: Air Intake Scoops
- Material: Aluminum
1 Pair Aluminum Air Intake Scoops
For BMW E60/E61 520d, 525d, 530d, 535d
For BMW E60/E61 520i, 525i, 530i, 535i, M5