Looking for slip on spark arrestor

[farmergunner]

Does anyone know where I can get some cobra sparky slip on spark arrestors . I have been looking all well and everyone tells me they are no longer avail.

 

I have shearers in frame pipes and need something with a 2 1/2" I'd. To slip on.

 

Any help would be appreciated .

[trickedcarbine]

Pretty sure there is a nice set from pro circuit that is forestry approved. Maybe find a used set on Ebay or maybe here in the forsake section. Machine a bung that takes the shearer stinger tube and 3 bolts. And weld it on to the end of the silencer.