Eisenmann Exhaust Systems GmbH has been dominating the scene of hand-crafted German exhaust systems for BMW M cars since 1988. That's loads of experience to bring perspective to their design, like a pro athlete looking back on years of success. However, the key to staying on top is having the ability to stay creative, which is exactly what the new F90 M5 Eisenmann Race system is. Eisenmann wanted to give their clients lots of options for this super sedan and so came up with two totally different styles of exhaust. The Race system is made to maximize power, sound and minimize weight. Each race system is hand-crafted from 304 stainless steel and offers Eisenmann's unbeatable fitment and sound. Plus, you'll get a major weight savings.