I stopped by a local speed shop today and this was on his floor. I asked about it and he told me he knew nothing about it and for 20 bucks I could take it home. 20 dollars later here it is.
Yup, turboxs 4" downpipe. Good find! Too bad the midpipe didn't come with it but you can buy an adapter to make this work with most aftermarket catbacks.
I have plenty of exhaust pieces to make a new pieced together mid pipe. My son is planning on putting this in the 2.1 stroker we are going to build for his 03 WRX.