When it comes to heat insolation especially for the floorboard Id do exactly what comes from factory.. It is glued to the floor, this is heat wrap a little different from heat shields.. Yours may still be intact like I said you wont know until you get underneath and look.. Ill take a pic of what mines looks like during lunch and post it so you know what to look for..
Thanks. Appreciate the pic. Since mine was still sopping wet and ripped, I could not make heads or tails as to what was missing, etc. Mind you, I have a WK, but it should be the same.