Perrin Oil Fill Cap Blue for 2002-2021 Subaru WRX 04-21 STI 00-16 Forester XT Replace the ugly yellow plastic OEM oil fill cap with the sexy billet aluminum PERRIN Oil Fill Cap! Features: The PERRIN Aluminum oil cap is the finishing touch to your engine bay leaving a clean and tasteful look. PERRIN's stylish oil cap is prominently displayed sitting just to the right of the engine and is indexed so the PERRIN logo is always in the right spot. Machined from 6061 Billet aluminum Textured finish and hard anodized. Features a knurled grip section for easy removal and installation. Includes: (1) Oil Fill Cap, (1) O-Ring, Warranty & Instructions