1) American slang for the anus 2) Auto part 3) Auto-exhaust part 4) End of an exhaust system 5) Engine attachment 6) Exhaust expeller 7) Exhaust outlet 8) Exhaust tube 9) Exhausting item 10) Meineke stock item 11) Pipage 12) Pipe 13) Piping Found on https://www.crosswordclues.com/clue/tailpipe