BMW 530D M-57 Engine exhaust question

[BoraBora]

can somebody tell me what the box is straight after the turbo on the exhaust?
infront of the flexi not the DPF


http://www.bmwheaven.com/index.php/component/joomg...


thanks

[nobrakelights]

Looking at pic m57d30t2_side_rear, it's just the Cat isn't it?

[soda]

Primary cat. 2 cats on these cars.

[mrmr96]

Indeed. It's the cat. You can get a decat pipe from here:
http://www.ecotune-scotland.co.uk/product/BMW_E39_...

[BoraBora]

great help, thanks guys, not sure why it didnt click to think it was the Cat, used to see'ing them looking different to that.

Carl