FTP F2X F3X B48 charge pipe combo V2 ( charge pipe+ intake pipe)Features *Increased Flow *Direct OEM Replacement *Caliber increase *3 Ply Silicon Couplers * bung for water injection *never blow up again * Oring , seal , C clip all inside B48 charge pipe For maximum effect, The FTP Charge Pipe bothincreases flow and improves the reliability of your B48 B46 engine BMW. The aluminum pipe replaces the brittlefactory plastic pipe which can fail under increased boost pressure. The increased piping size helps to