I just got this kit and was looking at the inside of the manifold and it looks kinda funny to me. Dunno if u can really tell from the pics, but like where the runners meet up with the flange part inside, it's uneven. If I run my finger across where they meet, you can feel it's not the same size. Also, on the bottom of the hole/opening, there's like a big "step" from the flange to the runner. Tried to draw arrows to where the lips/steps are. Any input?

 

Seen it before, shouldnt be a big deal, as the air is exiting and will pass over that lip.. but not the best work ive seen

 

^ I took a look at the manifold again just now and ran my finger around where the flange meets each runner and i noticed on a couple of them, the runner is lipped higher than the flange. Also, there's a fairly large gap between the flange and runner and where the runner should meet the flange, it's sharp.

 

Who made the manifold?

 

It looks like a ETS manifold. All it is is them trying to grind the 1/2 flange down as much as they can to make it even. They have an oval shaped opening on the flange and head but the runners are round so obviously there is some work involved to make them nice.

 

Yeah. I've talked to a couple other people that have the ETS kit in my area and they said the insides of their manifolds were pretty smooth and didn't look like mine...? I'm going to just bring the kit down to the shop that's going to be tuning my car and see what they think... =/

The gap in the first runner looks pretty significant. Looks like they tried to fill the gap with some weld, but there wasn't enough so there's still a sharp ridge in there.