MMR Performance | Billet fuel filler cap | BMW

Nobody enjoys filling up—but with the MMR Performance Billet Fuel Filler Cap, even the most routine task becomes an experience to appreciate. At PERON Automotive, we’re proud to supply and install parts that combine performance with craftsmanship—and this cap delivers both in classic MMR fashion.

Meticulously CNC-machined from billet aluminium, the cap is designed to elevate both the feel and appearance of your fuel system. Whether you're at the pump or showing off your build, this cap offers a premium tactile experience far beyond the standard plastic version.

Key Features:

• Billet aluminium construction for durability and style

• Deep anodised finish for long-lasting protection

• Includes new rubber O-ring seal and locating tag for perfect fitment

• Integrated pressure relief valve maintains safe, balanced tank pressure

• Direct replacement for the plastic OE cap

This cap doesn’t just look good—it’s engineered for everyday functionality, with all the practicality of the original plus MMR’s signature over-engineered quality.

Make every detail of your BMW reflect your attention to quality—right down to the fuel cap.