Interesting, I don't have the drone effect at all with my car. I've run both Flowmasters and Magnaflows and these are the best by far that I've run when it comes to the mind numbing drone effect the others had.
The drone is so bad you don't want to drive in that RPM range with the windows down. Seems to have gotten worse with the engine rebuild when I restored the car. Funny thing is it's a milder cam than what was in there before the rebuild. Close to stock now. 2.25" exhaust from front to back. Seriously thinking about different mufflers. The Dynomax VT's look interesting except for the cost and moving parts. I'm a little leary of moving parts in a muffler.
