Can someone help identify the stock exhaust system?

[fastestdsm]

I need help indentifying the stock exahust system. When I bought my car, it had a 1 peice full 3 inch custom exhaust system.

I have a 16g turbo, I dont know if it is the evo3 o2 or the 2g o2(how can I tell?). My exahaust system goes like this, turbo, o2 housing to another o2 housing look alike, that looks like its been cut so it can be bolted onto the o2 housing, then it bolts onto the downpipe which is one peice 3inch all the way back and welded to a aftermarket muffler.

so..
is this how it normally is? I was assuming it was differnent because I thought it went like this... o2 housing to dp, then catback? ### correct me if Im wrong.

 

[1992awdlaser]

It does go o2 housing to downpipe to the cat (test pipe) then the catback. If you post a picture maybe we can tell you what the other thing is. I am thinking it could be an exhaust cut out.