It does not feel hotter inside the cabin at all. However it does feel a bit hotter to the touch if you touch the bare metal along the drive shaft hump. There are square segments about 6x6 inches where they do a "squiggle" of what appears like caulk on top of the floor plan probably to absorb or take care of the heat. I do not know how the cold will play out up north. The only thing that may be annoying is the wiring. They good a good job of hiding it, but there are some spots where it cant be avoided. Either way, it looks bad ass. I will get pics up soon.