Remus Axle Back - BMW G20 M340i | G22 M440i MSS remapping the ECU is mandatory

remapping the ECU is mandatory in order to prevent potential “check engine light” warning signals

You are prepared ̶ your ride too: with a turn of a knob – from everyday life to attack

MAHLE Bearings

Once installed to the BMW  the new free flowing GPF-back half system improves the vehicles power and sharpens up throttle response as well as reduce the overall weight

Remus Axle Back - BMW G20 M340i | G22 M440i MSS remapping the ECU is mandatoryAxle back system for BMW M340i xDrive, Type G20, Sedan (G3L, with GPF) BMW M340i xDrive, Type G21, Touring (G3K, with GPF) & BMW M440i xDrive, Type G22, Coupe (G3C, with GPF) consisting of a sport exhaust centered, connection tube and one of four tail pipe sets. Tube diameter: Original tube 70 mm REMUS tube 76 mm ATTENTION The original exhaust will need to be cut! No rear skirt modifications required! The system includes an additional original BMW