Here's some pics of the heat shield stuff installed. I picked it up at the local auto parts store (Lordco), but likely they have it at Napa etc.
Here's that section before the heat shield stuff:
And after (far left of the pic)
Top view:
And the steering knuckle (right by the header)
The stuff I used is almost like bubble wrap with reflective silver tape on it, but better than than combination sounds.
Somewhat like this, but what I got isn't tape:
" target="_blank
You can also get heat shield foil tape:
" target="_blank