Ok, I have another set of questions (03 WRX 2.0)-
The car came with a aftermarket turbo-back, cold air intake, and a manual boost controller. I don't know if it has been tuned, but I doubt it considering the codes it throws.
I plan to get an up-pipe and an Accessport before getting it back on the road (replacing the transmission and FL axle now). Should I remove the MBC and reinstall the stock piece? I plan to use the Stage 2+ from the Accessport when I get it due to the car's existing modifications.