Injen 99-00 BMW 323i E46 2.5L/99-00 328 E46 2.8L/01-05 325 E46 2.5L Wrkl Blk Short Ram Intake w/MRIs your engine choking for air and in need of some additional horsepower? If so, Injen has exciting news for you! The SP series of cold air intakes from Injen Technology will allow your engine to breathe deeper and enhance the performance that you've been craving. The SP series of cold air intakes is Injen's flagship system in their lines of traditional aluminum cold air intake systems. Injen Technology is the world's first tuned air intake system and