3 1\2 inch thdp and header question?

[TA49-WE4]

I have a 3 1\2 inch thdp with the stock style waste gate setup. I will be running champion heads. I would like to know what headers will work with it and where I could buy a set new or used.
Thanks

 

[Googs]

Supposedly the TA Performance headers have room for a 3.5" DP. You can get them from TA or ArizonaGn.