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aFe Stage 2 Intake Kit With Pro5R Filter

aFe Magnum FORCE Stage 2 Cold Air Intake System for 550i and 650i (E6 0/E6 3). 11.75 hp and 10.50 lb/ft torque gain! This intake kit replaces your restrictive factory air box. It features a 3-angle velocity stack adapter, heat-block molded intake tube, 16-gauge powder-coated steel heat shield, trim sealed to seal out hot engine air, and a custom aFe brand cotton filter. This version uses aFe's highest flowing filter media, which uses a lightly oil gauze to filter out dirt and particulates, while allowing more air to flow to the intake. For the best flowing filter, with the best performance gain, we always recommend this standard aFe filter media (often called "Pro5R ", which has a blue pre-oiled filter media). We also carry this filter in the "ProDry" grey filter media, which is oil- for only slightly less performance and no maintenance. By removing your stock intake air box, you are removing the most restrictive portion of your V 8's intake system, increasing both horse power and torque, improving acceleration as well as throttle response. 11.75 hp gain at 5900 rpm 10.50 lb/ft torque at 4000rpm