My car won't do more than 70mph and I suspect a blocked cat has any one experienced this what are common symptoms also the emissions are really high it only just passed last week on its MOT
No can still rev it right up stationary it just struggles to get up to speed and then when it get to 65-70 won't go any quicker and sounds like its going to explode lol
My cat failed horribly. Symptoms are a terrible smell in the cabin (the sprung expansion joint pops open under the pressure) and the feeling you're dragging a huge cartoon anchor behind you .