So I had this rattling going on around the turbo area. I finally tracked it down to being the secondaries wastegate doors. Basically it was not holding the door enough there was play in the arm. I took it off the bracket and put some washers in between it to make it hold the door closed. Now wooohooo my rattle is gone no more sounding like a mountain bike in decel!

But my question is, I noticed that my turbos spool faster now and I have better low end...is this just in my head?

..........now to figure out why my car makes a duck quack when at high rpms with short blips on and off the throttle like a blow off valve

 

no one?

 

sounds about right. search for a thread from damian on the topic.