what type of runners are these, are they stock because i thought the stock ones could be siamesed?
if not then which ones were shown in the tech section's article on siamesing runners?

 

sorry, i got the red "X" of death

 

Usually people talk about siamesing the stock manifold base, not the runners. Stock runners are separate extruded tubes, one for each cylinder. They are super thin. In order to siamese stock runners, you cut half away from each opposing runner and tig weld in more sheet aluminum. It's not something most people could do. I have a mig set up for aluminum and was thinking about trying it, but I am probably going to spring for a set of aftermarket runners and an aftermarket base instead. Siamesed stock runners look disgusting unless someone does an amazing job welding and then grinds and polishes them.

 

those look to be OEM runners.the picture below is what they look like once you connected the tubes.

 

Those are stock, the article you are referring to in the tech section are SLP runners.