I changed it myself... please don't pay to have this done.. it's easy, but requires you to dislocate your hand a little... he..he.. the bottom bolt is really hard to get to so i was almost laying on top of the engine to take it off. No there's no performance upgrade available.. actually you can completely remove the crap from your car and not have it affect anything, but the problem is the pcm. It will always be on.. unless you buy a new pcm that over looks that area. Another issue with removing it is emissions test.... some states require it be on the car and will visually inspect under the hood for it... yeah... you can buy a block off kit from mopar or vitors... and keep the piping in place...
Those new pcms are expensive and i have an ATX so it's not even worth it for me to do that. Buying a new EGR valve which comes with the sensor... which is really the problem to begin with... cost me 92 bucks. Once that sensor goes bad it will leave the valve in an open position which is why your gas milage is sucking. It's also time to clean the intake... you might want to get some intake cleaner... after running with the egr open like that for some reason my intake is really nasty... alot of carbon build up...