Previous modifications on this Holden 3.0L LFW V6 included: VCM OTR Cold Air Intake 2.5" Xforce Catback Exhaust Xforce High Flow Cats After our session, we achieved an additional 19kW at the wheels and 27Nm of torque  compared to the previous tune! Our upgrades included: Fixed ECU Tune on the Dyno Tuned TCU for smoother shifting Stealth 4.0 Throttle Controller Installation Before the retune, the vehicle was running dangerously lean at 0.65 lambda under WOT , causing knocking