Originally Posted by captain78
Why do some people run the EGR plate and some don't what's up with that.
Well, back in the day the EGR ran under the carbureted intakes and you could gain some HP by removing the EGR and blocking off the channel, thus promoting cooler denser air flow in the intake.
That thinking has carried through, but recent research has shown that there is actually very little if any benefits to be gained from removing it.
The EGR valve closes off under WOT so the flow of the heated gases is temporarily stopped anyways, right when you need it to be stopped the most.
The only other reason to remove it is because the EGR system components have been removed or damaged and it is no longer able to do its job anyways. Racers will remove it to save weight and reduce the under hood complexity.