This is one of those hot topics that brings out all the arm chair mechanical engineers.
I will quote the IIHS:
Quote:
|
Originally Posted by http://www.iihs.org/iihs/topics/t/bumpers/qanda
Polypropylene foam or formed thermoplastic sometimes is used in addition to or instead of crushable brackets and a bar. But frequently their main purpose is to serve as a spacer between the bar and the bumper cover and not as an energy absorber.
|
Personally, I have no idea why Subaru/Toyota put the styrofoam there, so I wont remove it, and will avoid any mods that do remove it.