All of out classing questions typically end up in the “getting help” section.
Onto the question.
Strictly speaking, no. The NOC rule is 2.5L to 3.1L for forced induction engines. The 2016 TTS has a 2.0L forced induction engine. However, the 08-2015 TTS looks to be classed there, so its probably a decent fit. I doubt the STU folks are going to have a problem with you running there.
I would run STU, and talk to the other STU folks.