Yeah my 2005 V8 has a cracked passenger side one, I can clearly hear it for the first 5 minutes or so in the morning at low RPMS under load and it speeds up with RPMs. tick.......tick......tick.....tick...tick.tick.tic k.tick
I'm going to live with it for now, no emissions to deal with here.
Its so lame 07+ V8 4Runners have the option to atleast go with Thorley headers but not us. OEM is the only replacement.
I'm more likely to do a catback though and mask the sound instead of replacing the manifold. Maybe in spring if its still annoying me I'll take a crack at the manifold.
Keep us posted on your replacement progress. Best of luck to you.