Turbo Outlet Pipe For N55 BMW M235i, 335i, 435i, ActiveHybrid 3 (F Chassis) - ARM MotorsportsAn N55 F Series Turbo Outlet pipe is a must have addition for anyone with an N55 F Series engine, The turbo outlet pipe allows for more air flow out of the turbo to the intercooler, increasing horsepower and allowing for faster turbo spool. CONSTRUCTION The ARM F30 Turbo Outlet Pipe is constructed from mandrel bent T6061 aluminum, it provides smooth, unrestricted airflow from the turbocharger to the fmic. The ARM F30 Turbo Outlet Pipe also features