What info do you know about the HKS GT3037? IE: how well does it perform in areas such as spool up time torque psi levels for 450-500HP?

***GT3037: This is the mother load of turbos. Get the 52 trim compressor
and
.73 A/R turbine housing for good streetability and ~400-425 or so whp.
Get
the 56 trim compressor and .89 A/R turbine housing is you can live with
a
little more lag and want ~475+ hp.