AIS is a great upgrade for E99s owners but you will need to replace stock intake tube from filter box to CCV coupler with 99.5+ tube.
Also I got a foam fender sleeve that will allow more air from E99 fender vent through a 3 1/2 inch hole I cut in rear of AIS filter box. If Clay doesn't have the foam sleeve, ask him first, it can be had here. LINK This is the foam sleeve install LINK
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