OK I'll give you my opinion on the ansa vs magaflow muffler. I did not have the cat-back just the muffler. As far as the drone issue, the ansa has zero drone and I would say the magnaflow has some at about 2,000 to 2,500 rpm. I believe the sound of the muffler is close to the same. The big difference is how loud they are. On a scale of 1 to 10 and 1 being OEM and 10 being magnaflow I would place the ansa at 3-4. i guess the best way to describe it is if your looking for something a little louder go with the ansa and if your looking for something louder go with the magnaflow. The shop which installed mine open the muffler inlet up from 2" to 2 1/4 so there was no reduction to 2".