Take a look at your TB right over the exhaust. According to what ZZP suggests... eliminating the coolant from entering it and taking it off the manifold is going to stop if from heat soaking.

Say the engine is up to temp and you hit the first stoplight. What happens to your TB that is directly over the hot crossover pipe and the rest of your engine bay with the hot engine/exhaust in it? heatsoak.

The breather would be contradictive to how your pcm and fueling etc is setup. By adding it, you will see no benefit.