The Remus exhaust adapter for 2010 BMW 5 Series F10 and F11 models is an 84mm internals adapter intended to interface Remus parts with the vehicle’s exhaust internals. It provides a precise connection sized to the listed 84mm internal dimension, supporting correct alignment between aftermarket sections and the factory system on F10 sedan and F11 touring variants that use this internals profile.
Remus 2010 BMW 5 Series F10/F11 84mm Internals Adapter