Daly, our muffler and tailpipe were discontinued by Isuzu years ago, so that's out. Change the exhaust flex joint also. I got both done at Monro Muffler. Their #3430 muffler fits good, just not quite as silent as the stock one.

Clean the cladding with a sponge and warm, soapy water, rinse, dry, then apply a cladding treatment if you wish.

Mark