As a lot of you already know, it is sometimes difficult to completely eliminate a leak at crossover pipe and header flange. Is it possible to utilize a gasket of some sort in this area? I have gone the copper silicone rtv route with limited/short term success (brought down high BLM's), but now they are back. I located a place that sells a flat sheet of graphite/carbon gasket material that can withstand high temps. I was thinkin of making my own thin gasket using this material. I would cut out a donut measuring 2" I.D. and 2.5 O.D.. Do any of you have ideas on gaskets for this area? 
