How do I make this engine that I edited in blender work in Beamng?

I modeled a simple exhaust attached to the engine and now I am ready to use it in beamng but I don't know what I have to do to use it in game, can I get any advice?

 

Ehhh... It's not as easy as it may seem at first, as you need to atleast understand the basics of editing jbeams. Wish I could've helped you more, but your best option is to look at how the exhaust jbeam in BeamNG is made & then try to adapt it to yours