I installed an Ingalls Engine Torque damper this weekend and I am very happy with the results. One of the reasons I picked this unit was that I did not need to cut a hole in my exhaust heatshield to accommodate it.
I am very familiar with the Whiteline. Have had a couple, and a Spoon before that. Always said I prefer the Whiteline because it is lighter, doesn't get in the way of oil changes and looks prettier, which is appreciated by road kill.