Disconnecting the smog pump line can be a little PITA. Spray the bolts down with WD-40 the night before you rip everything apart. No other parts are necessary, just take out the old and install the new. Good luck.
get a high temp 1" hose (i think) with 2 clamps and cut the smog line off right where it connects to the cats..... you can patch the missing section with the clamps and hose....it is a PITA to get off and even more PITA to get back on..... when you buy a bassani kit it comes with the hose and clamps...