Originally Posted by LV-E92M3
I used to have the fabspeed x pipe + hfc + OEM exhaust and there was no drone at all. It's not loud maybe 15-20% louder than OEM cat back system.
Cheek out the Bastuck clubsport. It doesn't drone at all with the fabspeed pack.
Bastuck review by ESS@Roman
I don't think that's the Clubsport. The one in the link looks like their normal muffler. The Clubsport is their track muffler.