Looks good. Did they happen to mention to what temp their coatings are rated for? Did they have a choice of colors? Pricing?
stiscooby - If you're wanting the just coat the parts you've already wrapped...then no it won't make a big difference in temps or performance. The reason you still have high-ish underhood temps is prolly more due to your un-wrapped pieces (UP, exhaust manifolds, crossover pipe). Coating them would help with underhood temps...which is just a byproduct of the real benefit of increased exhaust gas velocity (i.e. quicker spool).