Hey davethevenerable, so far, I really like it ! I have noticed a significant noise reduction, my tires are obnoxiously loud, as far as the heat, I have black interior, so it gets a little hot, even without the engine running. I seriously don't feel any heat at all. However as I mentioned in my previous post, I also installed new carpet with thicker padding, i'm sure that plays a part in both the noise and heat factor. The Lizard skin, I would use again, when I get a chance I want to spray the underside of the hood. Hope this helps !