Originally Posted by Nubo (Post 3946882)

Also if your RX-8 is older, like my 2004, search the forum for how to "reprogram" the "AC Amplifier". This made a remarkable difference for me.

Another option is to use a heat-blocking window film. Heat that doesn't enter the cabin, doesn't have to be removed by the AC.

Insulation on the floor / transmission tube can also reduce heat-load in the cabin.