Not necessarily. Although many manufacturers claim that their spark plugs are pre-gapped to perfection, sometimes they can arrive a little bit off. The gap between electrodes must be exactly right, otherwise, it won’t fire efficiently. So, it may be worth gapping your spark plug yourself when they arrive. You can do this using a tool, like a feeler gauge. It may take a little longer, but it’s worth doing to make sure your engine fires up reliably every time.