Jake these are the parts to delete the evo stuff at the pump.
I got the part # for the EVO solenoid delete and also found some good info on another forum regarding the delete. Seems like the delete did little to nothing as far as "firmness" in the steering feel, but did help with the wheel wandering we've all experienced. For the time being I think I'm just going to disconnect the plug from the back until I get the part. I would assume that your Check Engine light would come on after unplugging/deleting the solenoid? I only ask because in April next year I have to get an emissions done for my registration.
http://www.gmpartsdirect.com/results.cfm
http://www.pacificp.com/forum/viewtopic.php?t=10246