Originally Posted by phunk

These inexpensive replacements are never original in my experience. If you keep the car stock they can probably work for you, though its unlikely the quality as as OEM hence the savings.

If you end up wanting to do fuel system upgrades down the road, they generally are not compatible with any aftermarket upgrades as they are constructed slightly different. They do appear the same at a glance to someone who doesn't work with them regularly, but if you try to upgrade them and follow along instructions online using off the shelf parts, you will quickly realize that you do not have the same unit as everyone else.

So just be aware of that depending on your plans for the vehicle.