Well the kit was just for the trailing arm. They do have other pieces but its sold separate.
http://www.powerflexusa.com if you want to check it out. Order from Carr industries as they has a tax rebate discount now. Not sure for how long. Not much but it was nice.
With urethane, everything should just slide in by hand. In my case it didn't so I had to pay a shop. Took it to a BMW shop as rather they do it than a local mechanic with a press. So paid one hour labor, $87 instead of $40. But it came out nice. If you do the rear end all together, it would be easier.
Will be doing the subframe before the end of the summer. I replaced with oem bushings last year and still have small clunk. I have the bushing removal tool that I bought, so its easy to remove and in case I need it for install. I will then start to rent the tool.
But yesterday I took a green light left turn and the car was solid. I still need to upgrade sway bars, but have new links, shocks and springs. Also now TA bushings. Also I can't hear a difference in the urethane.