You are reading the specs are bit wrong. The 3sgte 2nd gen (ST185) has a TVIS and EGR. Remember that we hardly get any engines from the US.
According to KORACING "This is for use on Gen 2 3SGTE engines originally available on ST185 Celicas (1990-1993) and SW20 MR2s (1990-1993 outside US, and 1991-1995 within the US)."
My engine is a Rev3 JDM spec not US spec so it doesn't come with TVIS or EGR. Hope that clears it up 