FTP Alpina B3 bit turbo charge pipeFeatures *Increased Flow *Direct OEM Replacement *Caliber increase *3 Ply Silicon Couplers * bung for water injection *never blow up again For maximum effect, The FTP Charge Pipe both increases flow and improves the reliability of your Alpina B3 bi turbo N55 engine . The aluminum pipe replaces the brittle factory plastic pipe which can fail under increased boost pressure. The increased piping size helps to reduce turbulence and maximize flow into the