Catalytic converter

[xboxrox]

Was able to reach & loosen the 4 rear cat bolts in a dry run for removing the cats this week ~ I think the front cat container is bolted to the exhaust manifold; if so, plan is to remove it due to it being plugged ~ once it's removed reassemble & test the rear cat & exhaust system for back pressure ~ a failed back pressure test will require replacing the rear cat...