I think this is part of the sales spiel.
Of course some can tell a difference . . . it's the "farkle effect".
It is part of the spiel. It also helps. Now I dont personally know anyone who has coated headers on a bike, but I do know a guy who builds race cars and coats the headers for reduced underhood temps and he says it works well, so I thought Id take a chance.
Im sure Ill find out soon enough. I know how hot it felt before, so if its not that hot, great. If it is, well, at least I know!
There are a lot of things that go into the high temps coming out of the fairing, but in the lower location, the biggest thing I can see air flowing across and dumping out in that area is the header. Plus, hot metal radiates heat into surrounding parts, so even if the heat coming out of the fairing is just as bad, the pieces near the header wont get nearly as hot. Guys report being able to touch the header right after shutting off the engine, and while there is no way in heck Ill try that, I can measure the surface temp with my IR thermometer.
Anyway, something to do, and hopefully it helps. If it doesnt, Ill let everyone know that too....
BTW, I had them coated inside and out....they say thats the best way to help with the heat. Outside only doesnt help as much....didnt cost much more either, so why not. I think it was only about $15 or so more....