Hooker Supercomp. LT Headers

I was woundering how hard these headers are to install, or how to go about installing them, I Am getting A custom X-Pipe made for the rest of the exhaust.

just installed them today drivers side was a breeze, lift the motor an 1" or 2 and slip rite in. pass. side had to clearance at crossmember and rear lower control arm mount . have not hooked up the rest of the exhaust yet .

mike