Porsche 911 (991 / 991.2) | Prepreg Dry Carbon Fiber Side Skirt

Porsche 911 (991 / 991.2, 2012-2019) Prepreg Dry Carbon Fiber Side Skirt

Engineered for Porsche 911 991 / 991.2 owners, this Prepreg (Dry) Carbon Fiber Side Skirt (OEM-style profile) directly replaces the factory rocker panel with a GT3-touched carbon equivalent. Quality-controlled by BYC Performance, this Porsche 911 carbon side skirt bolts directly to OEM mounting points, no cutting required. Our catalog includes two distinct 991 side skirt designs. This variant offers the cleaner, more street-oriented profile closest to the factory silhouette.

Side skirts manage wheel-arch airflow from the front axle toward the rear diffuser. This OEM-style profile preserves the factory door-line silhouette while bringing motorsport texture to the rocker. The same rocker geometry is shared across every Carrera Coupé trim from the 991.1's 3.4L/3.8L NA flat-six to the 991.2's 3.0L twin-turbo. Buyers wanting a deeper / more aggressive look should see our second 991 side skirt variant.

Key Features

• Prepreg (Dry) Carbon Technology: Autoclave cure under high heat and pressure; a more consistent weave.
• OEM-Style Clean Profile: Close to the factory silhouette; ideal for street-focused builds and daily use.
• Lightweight: Noticeably lighter than the OEM painted plastic rocker panel.
• Direct OEM Fit: 1:1 with 991 / 991.2 rocker mounting points; clip and hardware kit included.
• 2x2 Twill Carbon Weave: Deep carbon pattern under a high-gloss UV-protective clear coat.
• Aerodynamic Flow: Channels wheel-arch flow toward the rear diffuser.
• Sold as a Pair: Left and right skirts shipped as a set.
• Variant Note: For a deeper / more aggressive alternative see the 991 Side Skirt v2.

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

Most aftermarket carbon parts are made using wet lay-up, with hand-applied resin cured at room temperature. Prepreg (dry) carbon:

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

Installation Notes

1. Remove the OEM rocker panel by detaching clips and bolts.
2. Test-fit the carbon skirt and verify door-line alignment.
3. Use existing OEM clips plus the supplied hardware kit.
4. Torque bolts to the manufacturer's recommended torque.
5. Professional installation recommended.

Care & Maintenance

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

FAQ

Does this fit the 992 (2020+)?
No. 992-generation rocker geometry is different.

Does this fit the 997?
No. The 997 is the previous generation.

How is this different from the other 991 side skirt?
This variant has a cleaner, OEM-style street-oriented profile. For a deeper, more aggressive, aero-focused alternative see the 991 Side Skirt v2.

Compatible with Turbo / Turbo S?
Turbo wide-body rocker width may differ; confirm trim before ordering.

Compatible with Cabriolet and Targa?
Yes. 991/991.2 Carrera rocker geometry is identical across Coupé, Cabriolet, and Targa.

Sold as a set?
Yes. Left and right skirts ship as a pair.

Shipping time?
In-stock items ship in 1-3 business days. Delivered via partner couriers due to length. 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 Porsche 911 carbon parts, Porsche 718 carbon diffusers, BMW M carbon components, Audi RS carbon spoilers, and more.