well.... i did not do much. to damn sore but i did get the driver side out with out pulling up the engine with not to much work it fell out .that allways feels good when you can get the headers out of the car . DON i think on the SANDERSON flange that they are wire burned with edm machine or something like that . they do the bolt holes too. that is why they are cut thru the bolt hole on the sandersons they do all of the job with wire ports and bolts .i will finish the header wednesday and will have more photos. then start on the pass side