"Feels like a race car now!!"
Nothing wrong with that! I still feel like this came on over time however, the brakes have been the biggest bummer of a 'mod' I've made. So I have to believe this weird vibration came on about the time I put those on. And got a little worse as the rotors wore.
I was working in the garage with a jack and my rented torque wrench exploded the first time I used it...so...I locktited the caliper bolts. Wonder if I'll ever get them back off.