BMW M3 F80 / M4 F82 Prepreg Dry Carbon Fiber PSM Side Skirt

Engineered for BMW M3 F80 and M4 F82 owners, this Prepreg (Dry) Carbon Fiber PSM Side Skirt set adds aggressive PSM-style rocker skirts to the sides of the car, lowering the visual stance and extending the side profile. Autoclave-cured in Europe and quality-controlled by BYC Performance, the BMW F80 / F82 carbon side skirt mounts directly to OEM rocker clip points.

Matched to the aggressive character of the S55B30T0-powered previous-generation M3/M4 family (425 hp standard, 444 hp Competition, 460 hp CS, 493 hp GTS), this dry carbon side skirt pair ships as left + right pieces and is an ideal motorsport-inspired upgrade for any BMW M3 F80 tuning or M4 F82 modification project.

Key Features

• Prepreg (Dry) Carbon Technology: Autoclave-cured under high heat and pressure, a more consistent weave.
• PSM Styling: More aggressive rocker geometry, motorsport-inspired look.
• Pair Set: Left and right rocker skirts included.
• Visual Drop: Lowers the side stance, lengthens the side profile line.
• 2x2 Twill Carbon Weave: Authentic carbon under UV-protective clear coat.
• OEM Fit: Direct bolt-on to F80 sedan and F82/F83 rocker clip points.
• Lightweight: Noticeably lighter than the OEM plastic rocker.

Prepreg (Dry) Carbon vs. Wet Carbon — Which Is Better?

Most aftermarket carbon parts are made using wet lay-up, where resin is applied by hand and cured at room temperature — which can leave air voids and inconsistent weight. Prepreg (dry) carbon:

• Cured in an autoclave under high heat and pressure → a more consistent weave
• Controlled resin ratio → lighter and stronger
• The production method widely chosen in motorsport
• Minimal UV fading over years of use

Vehicle Fitment

This BMW F80 / F82 PSM side skirt set fits the following models perfectly:

• BMW M3 F80 Sedan (2014-2018) — S55 engine (425 hp)
• BMW M3 Competition F80 (2016-2018) — S55 (444 hp)
• BMW M3 CS F80 (2018, limited) — S55 (460 hp)
• BMW M4 F82 Coupé (2014-2020) — S55
• BMW M4 Competition F82 (2016+) — S55 (444 hp)
• BMW M4 CS F82 (2017-2018) — S55 (460 hp)
• BMW M4 GTS F82 (2016, limited) — S55 (493 hp)
• BMW M4 F83 Convertible (2014-2020) — S55

NOTE: F80 sedan and F82/F83 coupé/convertible side skirt lengths differ; this kit is built per your model at order time — please specify your model. This product is NOT compatible with BMW M3 G80 / M4 G82 (2021+, S58 engine) or with BMW M2 F87 / BMW M2 G87.

Technical Specifications

• Material: Prepreg Carbon Fiber (2x2 Twill)
• Manufacturing: Autoclave Cure
• Finish: High-Gloss UV-Protective Clear Coat
• Color: Natural carbon weave black
• Quantity: 2 pieces (left + right)
• Origin: Europe

Installation Notes

The BMW F80 / F82 carbon side skirt mounts with OEM clips and 3M VHB tape. Professional installation recommended:

1. Clean the rocker panel surface with isopropyl alcohol.
2. Test-fit left and right skirts for alignment.
3. Verify seating on OEM clip points.
4. Peel VHB tape backing and press into place, hold for 30 seconds.
5. Avoid washing for the first 48 hours.

Care & Maintenance

Use pH-neutral car shampoo. Keep pressure washer nozzles at least 30 cm away. Apply carbon-safe sealant every 6 months.

FAQ

Does this skirt fit the G80 / G82?
No. G80/G82 (2021+, S58 engine) use a different rocker geometry.

Can the same skirt fit F80 Sedan and F82 Coupé?
No. Sedan and coupé door lengths differ. Please specify your model at order.

Compatible with M4 CS, GTS, and Competition trims?
Yes. All F80/F82 trims share the same rocker geometry within the model-specific build.

Does this skirt fit the M2 F87?
No. M2 F87 uses a different chassis and rocker geometry.

Does it fit the F83 Cabriolet?
Yes — F83 Convertible matches the F82 build.

Will speed bumps and steep entries damage it?
The skirt sits approximately 11-13 cm above the ground (OEM-similar). Use caution at high speed bumps and steep driveways.

Shipping time?
In-stock items ship within 1-3 business days.

Warranty?
BYC Performance offers a 12-month manufacturer warranty.

Why BYC Performance?

BYC Performance is a Turkey-based performance tuning specialist sourcing premium carbon fiber parts from leading European manufacturers and supplying them to the Turkish market. Our catalog includes BMW M3 carbon parts, BMW M4 carbon side skirts, Audi RS carbon hoods, Porsche carbon spoilers, and many more high-quality carbon components. All parts undergo strict quality control.