tb03 is T3, my T3/34 has a 3 bolt exhaust housing, these will bolt to the core(bearing housing) which is common to T3 T34 T4, so not a clue, it is easily identifiable by the inlet of the compressor housing as it is much larger on the T34 than the T3, unless it is a T3 compressor housing machined out to take a T34 trim(like mine).
tabetha