I think I have a hole in my exhaust. When revving it makes noises of different pitches. My question is though, can this cause poor performance? I only ask because recently I drove to Scotland and on the ups it would not go above 30mph. Would a dollop of high temp sealant do the trick?
(Also, is it illegal to drive with a damaged exhaust?)
(Also, is it illegal to drive with a damaged exhaust?)