Why you took them off?
Anyhow, ct9 can do 150 whp, more is difficult. You should just need FMIC, some decent exhaust turbo back and just about all the boost without hitting boost cut. I was running 0.8 with the stock ecu.
Do you plan to change the exhaust manifold. Since you have it out, it's a good oportunity to get one done. I think the stock manifold is too restrictive. I would be interested in a stock location manifold also.