I just did this this weekend and searched all over this site for help, unfortunately i never found this topic. Perhaps that's because Stillen is spelled incorrectly in the topic title. Perhaps an Admin can fix that up. None the less great job on the write up and everything said here is true.
Only thing I can add to any of this would be
1 you really dont need to remove the cross bar to get the stock intakes out so you could save a little time not hassling with that.
2 the bumper isn't as scary as it seems. It's really light and pops right off as stated.
3 be ready to reprogram your power windows after you hook your battery back up. Link to that here.
Window won't come up due to programming?