Anyone know what kind of downpipe this may be? I've searched everywhere and can't seem to find anything matching it. It seems to be 3", has a single bung for o2 sensor, has a flex portion, and has 3-hole flanges on either end. Also, the end that bolts to the cat is angled slightly. Any help would be appreciated. I have a nasty exhaust leak coming from the flex portion and need to replace it or have it repaired if I can't find a replacement. I forgot to mention it's external wastegate through the hood, so not the normal o2 housing. Thank you!

 

It might be a old style AMS downpipe since your car has the AMS turbo kit.

Looks like the same 3 bolt design from after the O2 housing.
http://www.superstreetonline.com/how...-turbo-upgrade

 

You're right. I ended up finding the old kit these downpipes came included with. Not sold separately. I took it to a local muffler shop and had a new flex section welded in. Good as new