Originally Posted by gragi
I had AFE catback installed on my 535 3 days ago after not being able to wait 6 months for meisteschaft. However when cruising 60-70-80 miles/hour it gets loud. Does the same apply AFE = Drowning. Paid $2000 for the system. Please advice
I spoke to the AFE guys at Bimmerfest and they claimed their system had no drone.
You might want to give them a ring.