When driving your high performance Subaru to the limit, you want to make sure your cooling and lubrication systems is working at their peak. A magnetic oil drain plug is a great way to ensure just that. The Greddy magnetic oil drain plug will grab any small metal shavings or other debris as they are circulated through your oil system, keeping potential contaminants from damaging vital moving engine parts. A magnetic drain plug can also alert you to a potential component failure before it becomes a costly breakdown or rebuild. The Greddy magnetic oil plug is a direct factory replacement and includes a plug washer for a quick install during your next oil change.