Before and after of turbo install

Max Boost at about 15 psi

The turbo installation was first done with Nistune.  I wanted more low end torque so I swapped the ECU to a Haltech 2000, changed the turbo exhaust housing from .82 AR to .64 AR, installed LS1 coils, oil cooler with remote filter, Pathfinder intake, boost control solenoid, Jim Wolff cams with tuning to bring on the boost sooner with less lag.  You can see the difference this made in reviewing the torque curves on the dyno runs above.