Porsche Carrera 4S (911 991.2) dropby for our
custom ecu stage 2 with bmc drop in intake and FI full exhaust system upgrade...
Stock (with FI full exhaust system) : 374 hp / 506 nm torque.
Stage 2 upgrade : 467 hp / 618 nm torque.
Gains : 93 hp / 112 nm
