MMX Performance Washer Fluid Filler Cap - G8X M2 / M3 / M4Upgrade the small detail everyone notices when the hood is open. The MMX Performance Washer Fluid Filler Cap replaces the flimsy factory plastic with a premium CNC machined billet aluminum cap, engineered in the UK for precision and durability. Finished in sleek black anodizing, it offers an OEM+ look that elevates your engine bay. Crafted on modern 5 axis machines and hand finished to perfection, this is a full OE replacementnot just a stick on
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