There are two different things you need to consider before you go blocking off your EGR.1) Why do you want to remove it?
There is no performance gain from removing the EGR on a stock system. There have been records of people loosing 2-3 mpgs from blocking it off, others see no difference. It does clean up a lot of the vacuum lines so the engine bay will look cleaner. Most people remove the EGR system because a part of their system is broken and it would be more cost effective to remove it then to replace it.2) Can I remove it?
There are only a few states that don't do emissions testing. If you live in state that does do emissions testing or plan on moving to one, removing is out of the question. From what I have heard, you might pass SMOG testing without the EGR system; however, you will fail the visual inspection. Make sure you can remove it before taking it out.
So if you have decided that removing the EGR is something you wish to do, please do it right.
You will need to cap both the EGR valve, and the port on the bottom of the intake. There is an egr solenoid on the right side of the engine bay which is controlled by vacuum and the computer.
Some people ground out the connector for the solonoid and cap the vacuum lines to trick the computer into thinking the egr system is still there. The main drawback is that this will cause your system to run lean at times due to the fuel / air mixture changing when the egr valve was supposed to open up.
I recommend getting the prom reprogrammed to delete the egr. That is the correct way to do it.
A few people on the forum sell custom proms for the EGR delete.
Phonedawgz sells them on his website reddevilriver.com
I wouldn't recommend welding the valves shut in case you decide to re-install the EGR at a later date.
You can purchase a block off kit for the EGR at http://www.blacktopupgrades...erformance-upgrades/
Black top is expensive, but the product looks nice and you don't have to worry about getting a block off plate machined yourself.
Hope this helps.