One thing about the wrap on headers, it will void any warranty that the header manufacturer has. It keeps so much of the heat inside the headers it causes them to rust extremely fast from the inside out. Same goes for ceramic coating them, unless the company that does it coats the inside of them extremely well. I have had to replace the headers and headpipes on two cars within the past six months (customers cars) that had their headers and exhaust systems coated by "local" companies due to inferior quality. These systems were on the cars for less than a year, so you get what you pay for when it comes to coatings. I sent mine to Jet Hot in Georgia which are on my 68 bb Camaro now, and I watched the pipe temps decrease over 150 degrees from my headers that were not coated before.
Also I ended up going from the Hooker Super Competition headers to the regular Competition headers as the drivers side seemed to clear the power steering box a little better, not much but there was defiinitely more room than the earlier set........RatPack......................
