GTS 300 24hp Stage 1 tuning

The Vespa GTS GTS 300 24hp produces 24 hp and 26 Nm as standard. The YASTUNING Stage 1 remap file takes it to 28 hp and 30 Nm, a gain of +4 hp and +4 Nm. ECU: Marelli IAW MIU4. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.