Product Fitment: 2002-2025 WRX2004-2021 STI2013-2025 BRZ2018-2021 GT862022-2025 GR86 Add a refined performance touch to your engine bay with the GReddy CNC Billet Aluminum Oil Filler Cap. Precision-machined from high-quality billet aluminum and finished in your choice of anodized blue or chrome, this cap combines style, durability, and function. Featuring GReddy’s original design and a lightweight construction, it’s a subtle yet impactful upgrade for any Japanese performance vehicle. Highlights: CNC-machined billet aluminum construction Available in anodized blue finish Original GReddy design for a clean, high-performance look Includes lightweight GReddy oil cap badge Comes with a 21mm hex / 3/8” drive loosening tool for easy removal -Size = M42 x P4.5 This oil filler cap isn't just for looks—its precision fit and durable materials ensure a reliable seal under high-heat, high-rev conditions. The included GReddy metal badge completes the look, making it a great addition for enthusiasts focused on both form and function under the hood.