I think the runners look a little larger than on the factory cast exhaust manifold while also featuring softer angles for improved flow. It's not an equal length unit, but looks fairly OEM while allowing for a nice turbo installation which doesn't look like you cobbled together some odds and ends you found under the kitchen sink.

Is it a race manifold? Well, I'd say that, if you buy the manifold, install it, and take it to the track a couple times, it is. More race than elaborate tig-welded monstrosities that spend more time on the dyno or in the paint shop than at the track.

Of course, what do I know, right? :shrug