Thanks for your reply's,I am aware there are a lot of things to consider about removing the downpipe and fitted the delete one,with regard to the mot I was just gonna refit the dpf before it goes in to be tested I no it's a bit of a hassle but if it means the car passes test then so be it.
Im planning on getting the car mapped after removing dpf so I would assume that the emissions would be at a decent enough level to pass the smoke test anyway with no issues
The link posted by flashp is a good read and there are a lot of people commenting on it and I agree with some of them and I no there are other things that contribute to dpf issues including the driver and I have to say that yeah I probably bought the wrong car as mine is used by the wife 90% of the time and doesn't really get a lot of long runs which isn't helping with the car carrying out regen every 2 weeks,I no there are issues on the car that can contribute to dpf issues as well,I have carried out some work on the inlet to try and help I've replaced the broken inlet manifold as it was the one with the flaps in it,I have fully cleaned the egr and pipe work,fully cleaned the throttle body too as they were both full of carbon,the car had new injectors in 2012 and only done around 20,000 miles on them so should be fine but I removed them and replaced the sealing washers as a precaution I've tried removing and cleaning dpf tried running cleaners threw the fuel system a few times spent more than £100 on cleaners alone,and it doesn't help much imo,there are never any fault codes stored in ecu either this is why I have decided to go down the removal route.
I no some may disagree with what I'm doing but it's my best option to suit me and it'll be good to not get moaned at by the wife every couple weeks about the dpf light lol.