spark arresting screen?

[stihl 440]

Does anybody know where I can get spark arresting screen for my 440,460 and 280, and the saws on my list. I'm going to mod the mufflers on them when I get screen. I already modded my poulan's muffler and it made a BIG difference. If somebody knows where I can get some it will be greatly appreciated. :rockn:

 

[scottr]

You can find all kinds of wire cloth at http://www.mcmaster.com/

 

[Lakeside53]

You can also just buy the OEM part.. it's not expensive..