[curtis73]

1- power steering is a very high pressure thing. Like on the order of up to 2500 psi. There is also a lot of flow involved. Many times people get the idea of just putting a restriction in the line. All that does is it still provides the same effort, but quick steering efforts run out of flow. In order to make the change you need, you must find a way of maintaining full flow while reducing pressure. There is no current easy solution, but I have an idea. Look to the rest of your car's line. Some of the more upscale Kias might have a variable power assist that provides normal pressure for slow maneuvering, but reduces pressure as speed increases. Its possible that this pump might fit your optima. Don't fall into the trap of using a larger pulley to slow it down. That reduces both flow and pressure and its easy to get ahead of the fluid.

2- no such thing as a universal. Break out the welder and have fun. The 2008s are pretty stiff, and you probably won't notice much difference, especially given the soft suspension, but it does stiffen things up a bit.