Baron, I'm sure I can hook you up with one
If we are comparing the twins v SST on a cost basis (as opposed to benefit),
then you could go this way:
Garrett IW GT35R with actuator ~$2,000
dump + front pipe ~$400
Ebay manifold ~$300
inlet piping + filter ~$200
oil/water lines ~$200
~$3,100 for parts
~$1,000 labour