Wunderlich - Gonzzoo Exhaust Deflector For Akrapovic Sports Exhaust for BMW R 1250 GSThe GS is one of the best all round motorcycles available. Nevertheless, we are constantly on the lookout for further improvements and always have an open ear for our customers. One point that our customers often mention is the clearly perceptible, low frequency roar of the GS, which occurs especially in part load and full load operation at speeds between 80 and 130 km h. Unfortunately, this is the speed range most often travelled in on the road. Or