Does anyone know of a company who sells/fabricates a metal replacement air box for a 2004 650 V-twin?

 

I have never heard of such a thing. May I ask why you would want one that is metal ?

 

I got with Danial Turner (Turner Cycles) & Micky Dunlop (Four Stroke Tech) to build my 800 stoker moter. Regeared both the diffs and the tranny. Now adding turbo to it. OEM air box wont handle amount of constaint pressure without leaking. thats why Im looking 4 replacement.