Help! How do I clean a front and rear undercoated valance!

[noahsense]

How do I clean this darned textured front and rear undercoated valence. It's making my alpine look filthy.

And what products are you using to protect and ease future cleaning?

[MT325is]

a huge sander and 80 grit sandpaper

[AndrewBird]

Are you wanting to remove the texture, or just clean it?

Degreaser and a nylon brush should work to clean it.

A wire wheel on a grinder works well to remove the texture.