X-Liner or Rhino Liner ?

Yes, but you have to ask Greg what he uses. I don't think it deadens the sound at all, but it sure makes the surfaces look finished. Inside the frunk and underside of frunk hood are done too.

oh cool.. I've seen those pics a hundred times and never noticed

@americanworkmule posted:

Does anyone have X-Liner or Rhino Liner their Spyder engine compartment to reduce sound or otherwise?

Not yet. It's on my list. My early kit is just painted.

i used rhino liner more for keeping engine clean,,,remember it smelling toxic..have plenty of ventilation..

The military used Line -x for various ballistic applications. My chassis was sprayed with Line X