Most guys will want the max capacity in their Pfab Oversize Intercooler Tank, but if you want to run your blanket, when you not at the track, like me, then Eric has a new option for you. This minor reshaping, allows you to keep using your blanket by not poking through your blanket where it transitions along the cowl hood as it rises to front of the flaps. If you are running a FIPK, especially GEN II, there is a slight change that will keep the tank from interfering with the heat shield. So if you have fender draw CAI, you wouldn't need the side corner removed, but only the alteration on the top edge. If you have a FIPK, but don't have your blanket anymore (where did I leave that?) or don't plan on using it then you would get the side corner mod, but not the top edge mod.