4.7 V8 440hp Stage 1 tuning

The Maserati Quattroporte 4.7 V8 440hp produces 440 hp and 490 Nm as standard. The YASTUNING Stage 1 remap file takes it to 460 hp and 510 Nm, a gain of +20 hp and +20 Nm. Engine code M 139L. ECU: Bosch ME7.3.2, Bosch ME9.1.1. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.