Join Date: Sep 2005
Location: Geismar, LA, USA
Re: F250 351w 'to emissions or not to emissions'
Keep the EGR, unless you're really worried about 5hp. I've seen too many people (including myself) run into endless problems after removing EGR... however, you could disconnect the hose running from your exhaust to the EGR valve and that will do fine. Leave all the other sensors and vacuum lines in place on it.
As for the smog pump: ditch it. All they do is make lots of noise when they get old. You'll need to find a way to plug the holes in your exhaust, but it's worth it to get that thing out of the way.