the supercharger i recieved for my VX was designed to be used w/o the EGR. supposedly made more power w/o it. but i was never able to get the CEL to go off. i finally just cut the wire. there are five or six wires that go in/out of the EGR. i wasnt able to rig up any resistors to fool it. it seemed easy in theory, but it seems there are a ton of ways the the egr can throw a CEL and i wasnt couldnt come up with a way to fool it. it seemed pretty complicated. i would love it if someone could come up with a way though.