Originally Posted by lippi
I would like to share my experience of these two great exhaust systems.......
About the Eisenmann exhaust, all i can say is WOOOW!!! This exhaust really brings the beastly side of the M5. From the cold start, revving, normal driving and spirited driving and also my favorite M5" fart", it really change the experience of driving the car.
So for those who's in the market for exhaust, you cant go wrong with either exhaust. Both are phenomenal products. BUT, if you want to make your M5 louder and meaner, i highly recommend you to get the Eisenmann
So you like the Eisenmann better because it is louder under *all* driving conditions? Was it equal to the Akra in any way? Did you try the Akra with constantly open valves (if it is possible to configure that way)