I drive approx 50 miles one way every day to work both 2 lane and Freeway. With new 3in R&D I'm in love. There is Absolutely no drone at 65 or 75. A slight drone hint at 85 though especially going up a hill. With my FENG off I can actually hear what it is supposed to sound like and it growls when you want it to. The trade-off for higher speed drone (although very mynute) is worth it imo.