What does 2.5L engine displacement equate to in turbocharged (T) terms

It's equivalent to a 2.0T engine. The 'T' denotes turbocharged engine models (TURL). A standard 2.0L refers to a naturally aspirated 2.0-litre engine. The 2.0T indicates a turbocharged 2.0-litre engine, delivering performance comparable to a 2.4L+ engine, with higher fuel consumption due to increased power output, though with cleaner emissions.

Engine displacement, measured in litres, represents the total volume of all cylinders' working capacity - calculated by multiplying single cylinder displacement (Vh) by the number of cylinders (I). Cylinder displacement refers to the volume swept by the piston moving from top dead centre to bottom dead centre, determined by bore diameter and piston stroke length.

Equivalent to 2.0T.