Kick out your old oil cap and tell it to hit the streets, we have a sleeker, much more attractive version to shine up your engine bay! When we set out to make a new oil cap we wanted something that was going to stand out from other options on the market, something simple that would still make a statement! If the look seems familiar, it’s because "The Bolt" Oil Caps are designed to look like OEM zinc-coated bolts Subaru uses in the engine bay. Machined from 6061 Billet Aluminum and coated in either a clear or yellow zinc, "The Bolt" Oil Cap has a unique, subtle design that stands out above the rest.