..this is neither here, nor there...but I got rid of a vibration by going to alloy, the stock tube had been crushed out of round at some point in its life and could not be balanced perfectly. (close, but still vibrated above 100 or so...)
I would have to agree with this one. I just got a lot of work done on my car for what I felt was a very reasonable labor cost. Especially for specialized work. The reason the shop makes money is because people like me will leave satisified, keep coming back, and babble to everyone they know.
Hell, just to mention "attention to detail", I broke my oil pressure sender when I did the install. I forgot to mention it when I brought it in, but wha-la! It works now. Whaddya know?