BMW - Exhaust - BMW - Exhaust: browse our selection on NSB concept. Find exhaust and system and compare options. Filter by reference, fitment and specs to pick the right part. A racing car's…BMW - Exhaust - BMW - Exhaust: browse our selection on NSB concept. Find exhaust and system and compare options. Filter by reference, fitment and specs to pick the right part. A racing car's exhaust system performs several functions. Its main role is to collect and expel the exhaust gases from the cylinders. This component also acts as a silencer, reducing the noise caused by the decompression of the gases exiting the engine.... Search by part number / model Specs & fitment details For maintenance and performance builds How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes. Not sure? Use the category filters or reach out with your vehicle details and the reference you need.