Rev9’s intake and intercooler charge pipe kit for BMW N55 Motor is great way to improve throttle response, reduce turbo lag and maximize power potential. Features all aluminum construction with CNC machined flanges using OEM hardware for a reliable and easy to install connection makes great replacement of factory rubber hoses. The mandrel bent 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 engine. Note: You may need to source new O-Ring and C-Clip if yours are missing or damaged as they are not included with this kit. NOT SIMPLE INSTALLATION, requires removal of front bumper and under tray for installation.