For anybody who is interested in tuning his/her Giant-Yamaha PW-X3 motor there is a tuning device from Italy. I contacted them and it will be available from tomorrow on. It seems it is a very basic model that allows only for turning it off and on. No max speed settings or anything. Installation seems to be trivial.
If anything else appears or gets tested lets add it to this thread.
SpeedFun ebike tuning Giant Syncdrive Pro 2 Pro2 - ebike tuning
SpeedFun Furious Evo F is a new tuning kit that increases assistance above 25 km/h on Giant ebikes with Syncdrive Pro 2 and Sport 2 motor. Plug and go kit!
www.speedfun.bike
If anything else appears or gets tested lets add it to this thread.