I'm look for a 3" stainless steel downpipe with an external wastegate. Must be stainless. Must be in great shape. If there is an O2 bung welded on it, that is OK. Wastegate must function properly. Let me know what you have.
I may be interested in the 500...
Just curious as to why exactly you are moving to the 1000. What features does the 500 lack that you need from the 1000?