well think about it... in the summer in the shade in a parking garage, its still like 90 degrees.. when you turn your AC on, and 45 degree air is flowing through the dash, thats a huge change in temperature. and your putting that sort of stress on the dash every time you turn the car and AC on.... up north or in japan its not as big of a deal cause the temp differences arent 45 degrees... Makes a lil sense to me at least...

Maybe its just inevitable for the S13, time for aftermarket dashes.