For the BMW M3 (G80) and M4 (G82/G83), a complete carbon fiber exterior mirror set typically refers to a pair of full-replacement mirror caps. Unlike simple “stick-on” overlays, a high-quality set replaces the entire outer plastic housing of the mirror to provide a seamless, factory-finish look that matches the other carbon fiber accents on the car.

1. Package Options

You generally have two paths when sourcing this set:

• OEM BMW M Performance (Genuine): These are handmade using a carbon fiber weaving process and treated with a UV-resistant clear coat. They are designed to fit the G80/G82 perfectly, as they use the same 3D scanning data as the stock car.

• Dry Carbon (Pre-Preg) Aftermarket: Premium aftermarket brands (like iND, AutoID, or TRE) use “Dry” carbon, which is vacuum-pressed in an autoclave. This results in a much thinner, lighter, and stronger product compared to “Wet” carbon, ensuring the mirror caps don’t look bulky.

2. Technical Specifications

3. Components of a “Complete Set”

A professional set should arrive with:

• Driver Side (Left) Cap

• Passenger Side (Right) Cap

• Internal Clips: Integrated into the molding for a “snap-in” fit.

• Turn Signal Housing Cutout: Precision-milled area to accommodate the existing LED turn signal strip.

4. Installation Insights

Installing these is a popular DIY project, though it requires patience to avoid snapping the plastic clips or the mirror glass.

1. Tilt the Mirror: Move the mirror glass fully downward/inward to create a gap.

2. Pop the Glass: Gently use a plastic pry tool to unclip the mirror glass from the motor.

3. Unclip the OEM Cap: Release the internal plastic tabs holding the stock cap in place.

4. Transfer the Indicator: Unscrew the T10 Torx screws to move the turn signal LED from the old cap to the new carbon unit.

5. Snap in Place: Align the new carbon cap and apply even pressure until all clips “click” into position.

Pro Tip: If you are performing a “Manual to M-Mirror” conversion on a standard 3 Series (G20), you will also need the Supporting Ring (Inner Frame) specific to the M models, as the “M wing” shape of the G80/G82 mirrors requires a different internal skeleton.