To be honest guys, any aftermarket exhaust will have drone. It is impossible to avoid, and drone is "subjective". I do agree that my AA is louder than the other exhaust systems, i.e. Eisenmann, Remus, etc. However, the Eisenmann and Remus both do have drone IMO. But you are paying a premium for it.
However, compared to a muffler delete and the Ikon, the AA exhaust is not that bad at all. It's just at 2-2.5k. Above that range or below it sounds completely stock. If AA can find a fix, as I said before, I will be an extremely happy customer since I do love the sound.
I will do a resonator delete if AA can somehow find a solution to minimize the drone.
2007 E90 328i - Titanium Metallic l 19" VMR V710 l H&R Trak+ Spacers l M-Sport Rear Bumper l Mtech Rear Lip Spoiler l Hamann Front Lip l Eibach Sportline l AA N52 Signature Exhaust l OEM Blacklines l MTEC V3 AE l 6000K HID l Nokya 7000K Fogs l MTEC License Plate LED l Interior LED l 15% Tint l BlackVue DR380G-HD + PMP