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They're Heddmans, I wasn't impressed with them from day one due to the exit of the drivers side collector (about 3"s from the trans xmember).
No bind, the collector is the last thing that I always bolt up. Did the center out thing as well.
When I finally get around to putting the Sanderson's on (they've been sitting in my basement for the past year) I think that I've learned enough through dealing with my current installed set on what to do. I researched a ton of info on how to get headers to seal.