Hey everyone, arrived home yesterday with my new to me intrepid ii, looks to be in great shape. The serial number is 2814 and has a date cast inside firebox of 1987. Im guessing its a model # 1303. The cat is removed from the rear if that helps. Gonna remove it today for a looksee. all gaskets seem to be in good shape. Will try the dollar bill test also. Will keep you updated