Seriously, if you got a quote for $400 I would jump all over it. I was quoted $800-$1000 from shops with lifts, air tools, and a press. I decided to do it myself with nothing but hand tools. It's a pain, but I had other cars to drive. I learned a lot, and I felt a great deal of accomplishment when I finished. It probably made the biggest difference than any other of my suspension mods. Anyways I would never install another one on someone elses car for less than $800.