I kinda have to think that they do replace the PIP. I mean, what else would be rebuilt in the distributor? They take it apart to clean it and all that, I sincerely doubt they just clean the PIP and hope it still works. I bet 90 percent of the distributors brought in are because of the bad PIP in the first place. Its not like the rebuilder doesnt know about it and only we do. They come with lifetime guarantees so Im pretty sure they replace the PIP before it gets shipped back out. Think about it. We pay like 20 dollars for it. They probably buy them by the truckload and pay about two dollars per stator, if that. Ive sold a few in my time at the store and Ive yet to have one come back. I think youll be fine with either an Advance one or one from the zone.