Ok, so I made myself a Hillclimb Gravel Sunburst config using vanilla parts. However, Ultra High Performance Radiator is not up to the task of surviving the merciless abuse I throw at it and overheats. How can I make my own radiator? I don't even know where to start: do I need a separate file in mods' folder or what. No clue. Furthermore, I want to make a livery to match the one I made on my Pessima and I don't know how to do that either. Pessima's livery is vanilla, so I guess that will help.