The AMS Subaru Billet Oil Cap is a high-quality engine bay upgrade designed for Subaru WRX and STI models from 2004 to 2023. Crafted from CNC-machined 6061 aluminum, this billet oil cap offers a sleek, durable, and corrosion-resistant finish thanks to its anodized coating. The precision engineering ensures a perfect fit, while the knurled handle provides a secure grip during installation and removal. Equipped with oil-resistant Buna-N O-rings, it effectively seals the fill tube to prevent oil leaks, maintaining engine integrity and cleanliness. This upgrade not only enhances the aesthetic appeal of the engine bay but also contributes to improved durability and performance under demanding conditions. Its robust construction and thoughtful design make it a reliable choice for enthusiasts seeking both form and function in their engine components.

Designed to fit 2004-2021 Subaru WRX STI and 2002-2023 Subaru WRX models, this billet oil cap is a direct replacement for the stock component. It is suitable for street and performance applications, offering a straightforward bolt-on installation that does not require modifications. The kit includes the billet oil cap and Buna-N O-rings, ensuring a complete upgrade. Its compatibility with a wide range of Subaru models makes it an ideal choice for owners looking to enhance their engine bay’s appearance and reliability. Whether for daily driving, spirited street use, or track days, this AMS performance oil cap provides a durable, leak-proof seal and a refined look that complements any Subaru engine bay upgrade.