There is decent ones on Ebay....
I have a 4" slash cut, universal fit, and a custom SS over axle bend.
Cost me about $90 from Ebay UK, including P+P.
And it sounds like this.
http://smg.photobucket.com/albums/v487/nellyeff/?action=view¤t=Eastmainscutandcomp.flv
Must say though, that...