One of the best modifications you can make to your SAAB, subtle but powerful changes. Stage 1 ECU Tuning includes software changes to bring SAAB 9-3s with the Z19DTH 1.9TID diesel engine from 150BHP to 180BHP without the need to change any mechanical components.
Stage 1 Plus adds EGR, Swirl Flap and Intake manifold modifications, prevents further complications for common issues.
