Im roasting in my car, ideas to cool it down.

I like the air flow helmet or course I replaced my 2015 helmet last year. I have some room between the headers and firewall although not much. Funny the pipes are Jethot coated in and out. The aluminum radiator and big fan blow hot air onto the block and firewall. I think when I Iet the car cool after the run the hot air heats the firewall. Maybe I should try dumping a gallon of water on the firewall between runs to coolit down or a plant mister....