[Lawrie]

Tinker, yes always towing the c/van.
Danny,
2 in inlet and 1-3/4 outlet, but the so called muffler is only 4 inches round and 14 long.Plus I had sleaved the front pipe down to 1-3/4 with an aluminium sleeve that looks like its leaking, plus the muffler thing has probably 40 yrs on it.
Lawrie