I need a way to remove and replace the rear cat (firewall side) from under the hood.
I've seen a few people online hint that it can be done with the intake removed,etc
Come on folks .........
Help me out here 🎯!!!!!!!

 

Yes, you have to remove the whole intake manifold out of the way, remove O2 sensor, remove the heat shield, then you can access to three nuts on the exhaust manifold to remove the rear cat ( need deep socket wrench), get underneath to disconnect the cat from exhaust tube.