Classic Saab 9-5 (1997 - 2009)
9-5 Estate 2005, but I guess they are all the same.
The heat shield that sits above the middle silencer has become detatched, apart from one corner. It sits on the silencer and rattles, and may come off altogether at speed.
There are 3 or 4 fixing 'studs' down each side, but the heat shield...