Hairline crack in my hedder tube.

I like the idea Cracked came up with about using a rubber muffler hanger. If you can get one of those that has the bracket attached to it with the u-clamp then you could attach it in the wheelwell and leave a slight gap between the clamp and header. Then when you tighten it up it would pull up slightly on the collector to relieve some of the weight. Plus it would have a little movement for the natural twist to the car when you launch it.