The E36 Intake Duct maximizes airflow to the intake by replacing the left fog light for a CSL style intake.The ducts have a high quality smooth finish and are made out of automotive grade ASA. They will not discolor in sunlight and can be used naked or painted. This can be fitted to every E36 bumper with fog lights holes.Optional extras: Debris Mesh, this will block large debris such as rocks and leaves from entering the intake. 120mm Hose attachment, this will allow you to attach a 120MM hose to the duct. 120mm Hose + hose clamps. Plug & play! Including mounting hardware.(To run the 120mm hose adapter it might require deleting one of the horns and headlight height adapters, this varies per car)*Not compatible with the OEM BMW Brake Cooling Funnel *Might require work on the fender lines to make it fit