Since your old Cobb DP has the one cat in it I'd probably be interested in buying it off of you. I'll e-mail cobb to confirm 06' fitment. I'm pretty sure it'll fit since it replaces that entire section.

Oh a sidenote, ever isolate our "whistle" noise? I just got finished being sick and haven't had time to even mess with mine.

I've subscribed to this thread about it........ check that guy's video... same problem... Strange Whistle Sound ? - Page 3 - NASIOC