GTS 300i 23hp Stage 1 tuning

The Vespa GTS GTS 300i 23hp produces 23 hp and 23 Nm as standard. The YASTUNING Stage 1 remap file takes it to 25 hp and 25 Nm, a gain of +2 hp and +2 Nm. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.