I just tested it. Fixed Upgrades still don't work on dedicated Servers and never did. I don't know how many times people complained about this. If rFactor really want to do a (serious) competition system, which wants to compete with iRacing, this should be fixed asap!!! Otherwise this whole comp system will be a joke if you don't just want to race Cup races or GT3s. Imagen people running what they want. Low or High downforce. Big or small tank size. Hard or soft tyres. I'm sure this is a really small fix, but it really should happen fast.