STAGE 2 "TUNER" Intercooled System. This intercooled supercharger system includes all the required hardware needed for the installation (Minus the tools). "Tuner" indicates that this system does not include any ECU re-flashing tools or calibration file. You will need to consult a highly experienced EcuTek tuner prior to installing the system. Failure to do so will result in engine failure. "Tuner" systems do not qualify for C.A.R.B. approval.