My first wife was British and there was a brand of bangers we had to search far and wide for, don't remember what the name was. She and her parents said they were just like what they got in England. The big ones were bangers, the small one chipolatas. WE occasionally had bangers and mash, but more often it had to bangers with Heinz vegetarian baked beans, peas and roasted or stewed tomatoes.
My first trip to England in the cab on the way to the hotel, I asked the cabby where I could get some good bangers. He thought I meant prostitutes! I explained further and he said "Oh! Sausages. We don't call them bangers here." Later I read that they were called bangers here because the bread content was too high to legally be called sausage.