MMX Performance Washer Fluid Filler Cap - G8X M2 / M3 / M4

Upgrade 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 replacement—not just a stick-on cover. Pre-sealed for a leak-free fit, it’s the finishing touch that brings refinement to your BMW M2, M3, or M4.

Key Features:

• Fitment: BMW M3/M4 G80, G81, G82, G83, and M2 G87
  
• Material: 6061-T6 billet aluminum
  
• Finish: Black anodized (non-gloss) for scratch, UV, and corrosion resistance
  
• Design: Complete OE cap replacement for seamless integration
  
• Seal: Pre-sealed for precise, leak-free performance
  
• Origin: Designed and engineered in the UK

Why Upgrade:

• Replace lightweight plastic with solid billet for durability and a premium feel.
  
• Elevates engine-bay aesthetics with a clean, unified OEM+ look
  
• Complements other MMX billet caps for a cohesive setup

What’s Included:

• 1 × MMX Billet Washer Fluid Filler Cap (black anodized, pre-sealed)