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/MRThe Injen SP Series Intake Systems Feature the Patent Pending MR Technology Process for Optimal Gains and a Safe A F Ratio. The Injen SP Series Intake System does not limit itself to just a Cold Air System or Short Ram System. The MR Technology process has its effects on both types. The Injen SP Series Intake is The World's First Tuned Intake System This Part Fits: Year Make Model Submodel 1999 2000 BMW 323i Base 2001 2005 BMW 325Ci Base 2001 2005 BMW