BMW M3 G80 / M4 G82 | Prepreg Dry Carbon Fiber Front Fender Extension Fins

BMW M3 G80 / M4 G82 Prepreg Dry Carbon Fiber Front Fender Extension Fins

Engineered for BMW M3 G80 and M4 G82 owners, this Prepreg Dry Carbon Fiber Front Fender Extension Fin set mounts to the trailing edge of the front fender, disciplining the turbulent wheel-arch airflow and reducing lift. These fins are the track-day evolution of the M Performance accessory, adding race-track character to both M3 G80 Sedan and M4 G82/G83 Coupé/Convertible front fender profile. Imported from leading manufacturers around the world and quality-controlled by BYC Performance, direct fit to OEM front fender geometry.

If you're building a BMW M3 G80 tuning or M4 G82 modification project and want a part that manages wheel-arch airflow and adds aggressive visual presence, these extended fins are the ideal choice. Autoclave-cured prepreg carbon is noticeably lighter than wet-lay parts, offers very high strength for its weight, and outstanding UV resistance. Fits every trim of the S58-powered G-generation M family (M3 G80 473 hp, Comp 503 hp, CS 543 hp; M4 G82 + CSL 543 hp).

Key Features

• Wheel-Arch Airflow Control: Disciplines turbulent air exiting the front fender trailing edge; reduces lift.
• Prepreg Dry Carbon Technology: Autoclave-cured under high heat and pressure for a more consistent weave.
• Dual Profile Fit: Direct fit on M3 G80 Sedan and M4 G82/G83 Coupé/Convertible front fenders.
• Pair Set: Supplied as left + right; symmetric aerodynamic effect.
• Race-Grade Strength: Very high strength for its weight.
• 2x2 Twill Carbon Weave: Authentic carbon pattern under a high-gloss UV-protective clear coat.
• Direct OEM Fit: 3M tape + supplied screw points. No cutting required.

Prepreg Dry Carbon vs. Wet Carbon: Which Is Better?

Most aftermarket carbon parts use wet lay-up, where resin is hand-applied at room temperature, leaving voids and inconsistent weight. Prepreg (dry) carbon:

• Cured in an autoclave under high heat and pressure → a more consistent weave
• A controlled resin ratio → very high strength for its weight
• The production method widely chosen in motorsport
• Minimal UV fading over years of use

Installation Notes

1. Clean the front fender trailing edge with isopropyl alcohol.
2. Dry-fit the fins (left/right symmetry is critical).
3. Peel adhesive backing progressively.
4. Apply firm 30-second pressure on each section.
5. Tighten supplied screw points into pilot holes.
6. Avoid washing for 24 hours.

Care & Maintenance

Wash with pH-neutral shampoo. Apply carbon-safe sealant every 6 months. Keep pressure washer 30 cm away from the wheel arch.

FAQ

Does this fit both M3 G80 and M4 G82?
Yes. M3 G80 Sedan and M4 G82 Coupé share the same front fender trailing edge geometry; M4 G83 Convertible is also compatible.

Are they installed together with the front bumper canards?
Yes. These fender extensions are the second-stage aero piece that complements bumper canards; both sets together provide more disciplined front-axle airflow.

Compatible with M3 CS, M4 CS, M4 CSL?
Yes. All G80/G82 trims (standard, Competition, CS, CSL) share the same front fender geometry.

Compatible with M3/M4 F80/F82 (previous gen)?
No. F-generation uses different front fender geometry.

Compatible with M2 G87?
No. M2 G87 uses different front fender geometry.

Will rain damage dry carbon?
No. Autoclave-cured prepreg carbon is fully waterproof.

Shipping time?
In-stock items ship within 1-3 business days. International shipping available. Parts sourced to order are delivered within 30 days of the order date at the latest.

Warranty?
Manufacturing defects are covered by a 24-month BYC warranty, in addition to your legal rights.

Why BYC Performance?

BYC Performance is a Turkey-based performance tuning specialist sourcing premium carbon fiber parts from leading manufacturers around the world. Our catalog includes BMW M3 carbon parts, BMW M4 carbon fender fins, Audi RS carbon hoods, Porsche carbon spoilers, and many more. All parts undergo strict quality control.