I’ve heard the one in that spot sucks. Can’t get to that backside bolt by the firewall right?So I installed a dorman exhaust manifold cheater clamp on the rear driver head and let me tell you!!@ f@^# that job!!! I was so pissed at how that went, 4 hours later and it's on. It Fixed my leak but no more of those. I'm just pull the manifold on the next one or pay the experts.