BMW E30 E32 E34 E36 E46 318i 325i M3 Cold Air Intake Motor CAI Performance Kit REAL Carbon Fiber enclosed air filter w/ 3" inlet and outlet that can be easily adapted to fit the E36/E46 but the hose routing is up to you. life time washable gauze filter flows similar to K&N filter.The filter uses a pointed cone tip to help straighten turbulent air. 1-black intake hose, which now slips over the end of the filter assembly. 2-couplers 1-filter bracket