Hi again, i did the install, took me about an hour to removed and replace the entire exhaust system. It fit perfectly,make sure to place the collars at the right place the first time, i had to replace 2 of them because they were not aligned and i had problem bolting them , totally my fault. As far as i know, the drone is eliminated with the new system.The sound on my exhaust have changed a bit since the install, it is getting more throaty in my opinion,nothing wrong about it. For information, the car was on a lift so it help greatly .