Just a little bit drongo mate but happy to clarify. The heat from the headers is fine. Maybe a tiny bit warmer than the stock header but not really noticeable. They are hot to touch though and therefore will melt anything synthetic that happens to touch them. When I put my right foot down, if I'm not thinking about it my leg can brush against the header in, well, exactly where I sprayed the oven cleaner. The heat shield is to stop and more damage to my rain gear and any more melted plastic getting on the pipes. You may not need one.