There was an article on the fiesta st facebook page that listed like 6 free things you can do for increase in hp/performance. I can no longer find the link there, but one of the freebies was to tighten your hoses and it attempted to show the 4+ locations, but they were a little unclear.
I would love it if someone could take a few clear pictures for us noobs and point to these locations and maybe turn this into a sticky on the forums. It is my understanding that over time its quite common for them to loosen up.
-Thanks!