I use Mocool. it's no magic bullet but it'll help a few degrees. I just topped off my coolant with a bottle. FMIC won't do anything to keep your temps down. you need an upgrade oil cooler to start and go from there. I also have the oil cooler but still see the temps up there. may have to go with a upgrade radiator next year. welcome to the world of limp mode.
ps. I also use motul 300v 5-40 race oil which helps with temps a bit as well
"I would quote everything pixelblue said, but you've already read it. Take it from someone who's put the 1 through its paces"