Oil is the life blood of your car. Ensure its purity with a cost effective solution. Enter the Blox Racing drain plugsmade of 6061 aluminum with a neodymium magnet to capture metal debris. The strong magnet will collect particles your oil filter might miss and prevent them from circulating in your engine where they could damage bearings and numerous other critical components. Blox Racing magnetic drain plugs offer additional peace of mind in between oil changes and are direct-fit replacements for both your engine and transmission. A new crush washer is included.FITMENT:Subaru STI 2011-2014