Actually, I think I misunderstood what was being asked. The Jun manifold is a single TB manifold, not individual, but uses velocity stacks internally at the top of each runner, plus are flow benched by hand and balanced, this is why they are so much money.

As far as ITBs, there are a couple out there, but in all real honesty, out of the two or three we've dynoed, other than producing a pretty good amount of torque, there wasn't that mch more of a gain. Aside from that, they're really loud, and suck up pretty much anything in you engine bay....

Later,
Aj