Hi and thanks to all those who gave advice. I'll stay with the small gaskets and monitor the decay of the plug wires with time. Maybe I'll buy those plug jackets and eventually Jet cost. Regards, Tom. Does anyone who uses exhaust headers on their coupe, E3 or other bix six know whether the heat from the header will destroy the spark plug wires eventually? I ran my engine today with the headers installed and there was a lot of heat radiating off the pipes. I used only the six individual exhaust gaskets for each exhaust port, as opposed to the large gasket for each manifold which incorporates a heat shield. The reason I did this because I didn't want to cover the view of the beautifully crafted exhaust headers. Does anyone know whether I'm going to run into trouble or have a melt down?