It would seem if your not having issues then you probably would not need to do it. Personally I dont understand why even have an EGR - I hear it helps heat up the engine during winter - but other then that - I could care less to pump exhaust back into my engine! I tried to pull out my EGR but found the process to be a bear and i eventually gave up & taped her up (duct tape to the rescue) for a later endeavor when I have more patience and time to try again. I was having symptoms - if your not - well, do it if you want a good fight - getting that bugger out of there, could save you problems down the road - seems everyone eventually does have a problem with their EGR - but hey - if yours is fine - save the cash for later.