Hello, I have an Octavia 1.9TD1 and am looking to have it remapped to give more torque at lower revs. I read somewhere that it cause the diesel particle filter getting clogged up fast. Does that mean I need to have the DPF removed first and something else put in place instead before the remap. Will such a procedure have any effect on passing the MOT emmissions test. Does anyone have any experience of this? Thanks.