HELP - JT Air Filter Kit for 998 twin

[Haze]

I bought a new JT air filter kit for my 2013 Spyder STS - 998 Twin.
I receive 2 flat pans for the top and bottom of the air filter but no
thick throttle body adapter and barb fitting.
The thick (blue) throttle body adapter is shown in the #AF1 Air Filter Kit assembly instructions.
I assume the throttle body adapter acts as an intake venturi. Am I wrong?

My question - Is the (blue) Throttle body adapter needed for the STS motor?
Did I receive all the needed parts? How do I attache the crankcase vent to the intake?
See the image below from the installation instructions.
I've written to JT but have not received an answer.
Thanks, David C.