Call me the odd man out, but I read comments about drone, and saw plenty of videos with the same comments, and was pleasantly surprised how mild the TRD exhaust was on my TRD Pro. I guess I'm jaded. To me, drone is resonance that digs into your ears, like glass packs on headers that dump under the seats. I have a big block Chevelle that has a little drone and lots of rumble, a C6 Corvette that has drone and plenty of bark, an old K1500 4x4 that has headers and cherrybombs, a Z28 with headers/catback, and a 4runner that sounds practically stock and barely audible next to any one of them. The TRD Pro is hardly noticeable. I guess I'm just used to loud cars so in comparison it's quiet to me. It sounds a little ricey, but not bad. I wish it was a little louder to be honest.