MMX Performance N55 Chargepipe Kit - F2X / F3X / F87The MMR High Flow Charge Pipe (Intake Side) improves performance, reliability and aesthetics of your BMW M135i I M235i I 335i I 435i I M2 with N55 engine. With increased boost pressure the standard pipework can be prone to splitting or cracking the MMR aluminium replacements ensure reliability, even at significantly increased outputs. With increased boost pressure the cheap standard plastic pipework can be prone to splitting or cracking it's more a