Have this flange, from an aftermarket 3" to 4" downpipe, that fit the turbo after removal of the cast elbow. You would need to remove what's left of the old pipe but could use the flange and new elbows/pipe to make whatever you need. It's a steel flange that fits inside the pipe. Don't have the clamp. Don't know why the pics aren't showing up, just click the link.
[ame="http://s114.photobucket.com/user/catrucker/media/16cm%20exhaust%20housing/1115142200_zps3b55e16c.jpg.html"]1115142200_zps3b55e16c.jpg Photo by catrucker | Photobucket[/ame]
[ame="http://s114.photobucket.com/user/catrucker/media/16cm%20exhaust%20housing/1115142200a_zps2772a5c5.jpg.html"]1115142200a_zps2772a5c5.jpg Photo by catrucker | Photobucket[/ame]
[ame="http://s114.photobucket.com/user/catrucker/media/16cm%20exhaust%20housing/1115142159_zpsf5dfb1ba.jpg.html"]1115142159_zpsf5dfb1ba.jpg Photo by catrucker | Photobucket[/ame]