Just been doing some measuring if anyone's interested...
Compressor Wheels:
K03 - Inducer 41mm / Exducer 53.4mm
K04 - Inducer 46.3mm / Exducer 59.2mm
TD K04 Hybrid - Inducer 49.5mm / Exducer 65.5mm
Haven't measured turbine wheels.
There's no difference between K04 and K04 Hybrid anyway except the blades are cutback.
Also just ported out the intake housing/elbow as there was a bit of a step where TD had machined it for the larger wheel so we've ported it out the elbow to match the TD machining..
Should think Luke will be fitting this weekend along with RS4 pressure regulator and de-cat. Possibly some W/I :)
Kev