Unleash the true thunder of the 4.4-litre V8 engine by addressing the restrictive factory exhaust system. The stock F10 setup heavily subdues the aggressive twin-turbo soundtrack. Swapping out the restrictive factory catalysts for high-flow Exhaust Downpipes drastically reduces turbo backpressure, speeding up spool times and delivering immediate throttle response. Complete the acoustic transformation of your super saloon by fitting a premium Cat-Back Exhaust, giving your M5 the deep, resonant roar it deserves.