Yes, they do. They tune engine and battery. I can't tell in regards of the battery and the range but I had a chance to ride on normal Yamaha PWX on Haibike vs my Sync Drive and difference was very noticeable. Engagement on normal Yamaha was much more hectic and it tends to provide way more power than I needed for uphill throwing me out of the saddle. Not sure if that's torque detection on the specific bike I rode but I prefer Giant tune more.Don't Giant have a custom tune on the yam motors? My understanding is that their Yamaha motor/Panasonic battery package is unique to them.