Frees Up Horsepower Straight Forward Install aFe Quality Stage 2 Cold Air Intake BMW 530I All 2006-2007 For the largest possible performance gain replace the entire air box and intake tract with the aFe Stage 2 Open Element Air Intake System. Features No Floating Tubes Built-in ram scoop forces cold air to filter for greater efficiency and performance gains. Clamp Stops Raised stops on aFe tubes provide a more secure seal and eliminate slippage versus flat, straight tubes. 3-Angle Adapter Specially developed velocity stack with 3 different angles dramatically increase airflow from the filter to the intake tube. Quality Hardware aFe uses only top-quality hardware like stainless steel button head bolts and brass inserts. 3 Filter Media Choices Choose from the Pro 5R, Pro Dry S or Pro-GUARD 7 Filter. Stage 2 Cold Air Intake Material Pro 5R E60 E60