Ideas to improve ram-air in the n52 Air intake duct/Suction hood - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe /
![Amazon.com: Canitu Dynamic Air Intake Scoop, Ram Air, Cold Air Intake Kit Systems for BMW 323i 325i 328i 330i M52 M54 E46 M3 2001-2006,Red : Automotive Amazon.com: Canitu Dynamic Air Intake Scoop, Ram Air, Cold Air Intake Kit Systems for BMW 323i 325i 328i 330i M52 M54 E46 M3 2001-2006,Red : Automotive](https://m.media-amazon.com/images/I/61lHj9e4ozL.jpg)
Amazon.com: Canitu Dynamic Air Intake Scoop, Ram Air, Cold Air Intake Kit Systems for BMW 323i 325i 328i 330i M52 M54 E46 M3 2001-2006,Red : Automotive
![Why do most mass-production motorcycles have their intakes facing backwards? - Motor Vehicle Maintenance & Repair Stack Exchange Why do most mass-production motorcycles have their intakes facing backwards? - Motor Vehicle Maintenance & Repair Stack Exchange](https://i.stack.imgur.com/Ac2Vh.png)
Why do most mass-production motorcycles have their intakes facing backwards? - Motor Vehicle Maintenance & Repair Stack Exchange
![US6719079B2 - Ground effect vehicle using a frontal ram air stream and aerodynamic lift - Google Patents US6719079B2 - Ground effect vehicle using a frontal ram air stream and aerodynamic lift - Google Patents](https://patentimages.storage.googleapis.com/1f/fb/f7/96d3c61e8f144c/US06719079-20040413-D00000.png)