I recently installed the 1" spacers and thermal blanket and the temps are typically within 10 degrees of ambient. It's amazing to me, with how hot that engine bay gets, that those spacers and blanket are that effective. Did have some fitment issues with the holes in the spacers not lining up with my blower and thought I was going to have to pull it off and return it. I also have an S&B intake and trying to work out some fitment issues there, still. Anybody have any tips on how to get the S&B intake to work with these spacers so closing the hood doesn't seem like your crushing the top of the intake?