Just a exhausty type question. If you fit a de-cat would you have to refit this for the MOT. And would a standard TF exhaust + performance filter + decat pipe = more noise?
if you fit a de-cat pipe you would have to re-fit the cat for an mot.
on a tf a standard exhaust would not really give you much difference on noise or performance levels even with the uprated filter and de-cat you really need to go the whole hog to obtain best results
but if you do get the complete package and then get your ecu re-mapped you can have an option for leaving the de-cat pipe on for mot's