The climate control changes may be due to settings you have set up where it changes based on outside temps. I remember coming across it in a menu. Comfort settings I beleive? The other issue I have no idea. Mine does it as well
I installed the fronts. Rears I installed and removed. All supplied screws are incorrect for the rear. They aren't close to matching the factory screw profile, so they don't bite. You could walk up and pull the rear flap off. I threw them away.
Boogered up the crossover tube on the bottom of my right front caliper (long story. Don't ask). I attempted to see if this part was available from Toyota, but cannot find any parts diagrams for the supra. Anyone have any ideas?
From an aesthetic standpoint I think it would look killer. I like aggressive offsets. Not sure if the 18mm front would rub or not. I've seen some guys complain that the 15 front rubs, others say it doesn't.