May I ask what the "squash" is that is in the tubes? I just got one of these headers off ebay. Take a look around, I got mine for like $60 shipped I want to say. It was an auto salvage place that didn't have a pic so I asked them the condition and if they could send a pic. They did and and it is really nice, so you can get one for cheap. BTW, did you all just leave the oxygen sensor in the header, or did you plug it with a bolt of some kind? I'd also be curious what coating was used in the pic above, it looks excellent!