Dynamat Dynaliner, good stuff, nuts price....Look into RAAMmat and Ensolite the next time, used together better results, far less costly, tens of thousands of happy campers around the world have done this
Also remove the trim around the rear qtr panels, cabin vents are there, much noise comes in through them.
Do not seal the vents, just deaden well in the area.
Cowl intake? Any brand of mat with a reflective surface alone will do little good at all, the area is solid as it is, you need Ensolite foam to make the most difference.