I did a Roush install on my 08. My recommendation. Follow the instructions page by page don't skip ahead. Ship the PCM off right away, you'll be without it 3 days. It really isn't that hard, only issue I had at all was burping the intercooler but that wasn't even that big. Their instructions are pretty good really.
Looking at the instructions its 60 pages long any tips woul dbe appreciated. thanks