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Originally Posted by Puerto Rican 335d
Btw doesnt that DPF look like ours. Did they clean it or gut it out?
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I thought it looked just like ours in size/shape, but the connections/probe locations were different.
Seems like a lot of the youtube videos show europeans removing the dpf's, cutting them open and removing the DPF section (but leaving the Diesel Oxidative Catalyst in place if its a dual DOC/DPF like we have) and then welding it back up. This way it can still pass the visual inspections. Also, the DOC still helps a bunch with emissions reduction, particulate reduction, and with a lot of the smell. From the little I've been able to gather, removing the DOC doesn't seem to buy much advantage in terms of performance/longevity. But I'm not claiming to be an expert on this ...