An MoTer could reject it if it appears to have been tampered with.
It may be beneficial to consult your partner for his thoughts about it.
Does the DPF have that on the intake side?
Because a lower differential pressure would result from that.
It might lead to a highly unlikely interpretation, though.
On my own, I would replace.
However, you should inspect the DPF's tail pipe. I received two pairs of female and male items in my purchase.
There is a female receiver on my back of the exhaust.
Your V5 confirms that you have a Euro 5 vehicle, and your emissions plate details 0.1, so it must be.
I purchased one in January from AutoDoc for £310.51; however, it did not fit, but it might have been adapted to suit.