tire rubbing

Header tubes close to the tires I"m sure isn't idea, but if it was the big of a safety concern with tires blowing due to the heat they wouldn't make fenderwell headers. There are tons of cars with fenderwell headers. My car was raced from 1995-2012 with fenderwell headers before I put TTI on the car. This past winter I put the fenderwell back on the car since they are so much easier to work on. Check your front tires for cracking or dry rot that's more like to cause a blow out than the heat from the headers.