BMW cold air intake fits BMW 540i all 1997-2003 (E39) with a relocated air intake point down low in the mid front of the car to capture engine intake air before it gets heated by the engine.
Engineering developed a special 89 mm diameter aluminum intake pipe that was mandrel bent down to a cold air pick up point.
This intake pipe includes a CNC machined boss welded on it for those models with an air temperature sensor which allows the BMW sensors to be placed in the intake air stream thus avoiding check engine light mishaps. A threaded plug is included to seal off the boss for those models without an air temperature sensor.
The aluminum intake tube is fully polished for OE look in your engine compartment.
This system is topped off with a high flow reusable air filter to maximum horsepower.
Our intake works with HID headlamps.
Kit includes high flow air filter, intake tube, connection hose, mounting hardware, bracket and installation instructions.