RPi's Ram Air Induction converts your factory intake system into a ram air type. Other aftermarket induction kits mostly suck in hot air causing a loss of performance. The use of heatshields are not very affective as heat shields mainly work to block radiant heat. Utilizing the stock intake boxes, expect a 5 - 10 whp gain with 70mph airflow. RPi's Ram Air come with a 30-day money back guarantee.
BMW E60 550 Ram Air Installation Instructions
Average install time: 10min
- long phillips screw driver - flathead stubby screw driver (to remove kidney grills) - RPi Ram Air scoop - Rubbing Alcohol or similar cleaner + paper towel
Installation notes: Do NOT overtighten screws and do NOT pre-drill any holes. Use the self-tapping screws.