I think the Aussie headers are AWESOME and I may try them on my coupe project. They are similar in design to the Sanderson headers, but those headers are plain steel cost $345 uncoated and over $500 with the ceramic coating. Also, the Sanderson headers state that they are NOT to be used with header gaskets. This makes me think that they may be a 1 application header in that once they get torqued down and "blueprinted" to a particular set of heads, they could possibly leak when put on a different set of heads.
I have a set of Red's Passenger Duel Tube headers on my 56 Customline. they only have a 2" collector and even that flange comes right next to the steering shaft. The Sanderson design looks like it dumps further forward. May be just what I need
Rono
Ron Lane, Meridian, ID