911 headers value & identification
 

Recently bought a stash of parts and would like to sell/trade/donate the parts I don't need. I don't want to flood the forum so I will keep the posts brief!
The headers are pretty heavy, appear to be solid and not homemade, I don't see a stamping or tag, and it looks like the collectors have been repaired or modified.
The only ID says 1-1/2" and that does appear to be ID.
I would like to know if they have an asking price, suitable applications & possible maker.
Thanks for any help!http://forums.pelicanparts.com/uploa...1496938395.jpghttp://forums.pelicanparts.com/uploa...1496938474.jpg