I think mine is blowing from the flexible section of the downpipe. Now due to the wonders of the FAP system, I can't just go for an aftermarket jobbie. (Been researching FAP removal and I'm
nearly ready to take the plunge, but not quite yet).
The front section of the egg sauce, (which includes the cat,but not the FAP), is a real bargain....
Service Box wrote: 00001731V2 CATALYST MUFFLR £ 1,288.82
Now I know there are alternatives, I can get a complete system from
Online Automotive for example, (for £440), but that means buying another FAP

If I just get the front bit, it's still £380! Not sure if that includes the FAP too - if it does, I don't want it, if it doesn't I can't be sure it'll match up with mine.
Anybody know of a way to replace just the flexible?