That perforated metal looks good on there. Right or wrong, at the shop I worked at, our opinion was that that screen probably isn't really needed with a turbo. Whatever makes it through the turbo will be ground up into very small pieces. Those will be small enough that they would go through the factory screen anyway. Is that opinion wrong? I have no idea, but there is some logic behind it.
My opinion is that screen is thick enough to stop any large chunks of turbo in the case of "uh oh". Maybe not, but it makes me feel better so I'll run it! Didn't cost me a nickel, just a few minutes of time cutting and grinding.