Get a somebody with small hands to remove/install the rear bolts!!! LOL. I really had a tough time with the drivers side!! Take your time installing them, to make sure not to cross thread. I removed pipe connection to headers before removing them, not sure if it matters or not tho. You need to retighten bolts in a sequence also, and hopefully your gaskets will have instructions for that, cause I don't remember. I replaced my headers with ceramic JBAs, and just had a hella time with the rear bolts. Other then that, pretty easy job!! I also got the header exhaust end to pipes/cat connection gasket.
But they do need to be retightened in a certain sequence otherwise you can end up warping your headers.