In a crash it's of course going to be a little less sturdy than the stock beam, but not by a huge margin.
I think it would be by a huge margin, you talking about a thin tube here!! Most argue that the piece above is not even a bumper reinforcement and actually acts more to tie the rails together for chassis rigidity.
thanks a lot! Is it heavy?
Yes that's true, for some reason I forgot it's just a tube. They don't have the same safety laws in the Japan as they do in the US, it really is just to tie the halves together.