849cc 76hp Stage 1 tuning

The Aprilia SRV 850 849cc 76hp produces 76 hp and 76 Nm as standard. The YASTUNING Stage 1 remap file takes it to 81 hp and 81 Nm, a gain of +5 hp and +5 Nm. ECU: Marelli IAW5AM. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.