AI - 427 - 12.0 432hp Stage 1 tuning

The Mack Econodyne AI - 427 - 12.0 432hp produces 432 hp and 1979 Nm as standard. The YASTUNING Stage 1 remap file takes it to 495 hp and 2300 Nm, a gain of +63 hp and +321 Nm. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.