Damn starting to think I’m glad I didn’t order one. I want it to sound better, but not louder, and drone is absolutely unacceptable.
I installed mine a couple weeks ago and didn’t want to give a full review until I had ample time to get used to it. So far I have 100 miles, and I generally agree with what Toadster said, but I have noticed the “drone” is starting to mellow out as the carbon builds up. But at the end of the day you’re removing a decent sized resonator, so to expect it to not get any louder at all is unrealistic.
I don’t find it obnoxious at all, and I don’t think I’d really call the drone drone. I’ve had my fair share of mind numbing drone when I was younger, to me this is just more “bassey” in the 2k range but I experience no resonance. Not annoying at 80mph with all windows up and the radio at 6-8, which is low.