This only works for certain ones that i have looked at for example i'm using the Hopper First: Go to your Beam.ng files mine is located Local Disk C > Program FIles (x86) > Steam > Steamapps > Common > Beam.ng > Content > Vehicles Second: Find the vehicle you want to have unlimited NoS like I said i'm using the Hopper Third: Go into the folder and find the file hopper_n2o.jbeam then open it in notepad Forth: Press Ctrl and F and type in MainBottle Fifth: Change the Capacity and StartingCapacity to lets say 999999999999.9 then save it go back into game and it should work i will try to answer any questions you have This mod works best with Indestructible Engine Blocks by CrazyFlySquid https://www.beamng.com/resources/indestructible-engine-blocks.3062/