McLaren 600LT (2018-2020) Prepreg Dry Carbon Fiber Side Skirt

Engineered for McLaren 600LT Sports Series Longtail (2018-2020) owners, this Prepreg Dry Carbon Fiber Side Skirt delivers aggressive downforce channels matched to the 600LT's extended Longtail side profile. Manufactured in Europe to factory-spec mounting tolerances and quality-controlled by BYC Performance, this McLaren 600LT carbon side skirt bolts directly to OEM mounting points.

The extended skirt geometry — aligned with the 600LT's motorsport-derived Longtail aero philosophy — provides both visual extension and high-speed underbody airflow management.

Key Features

• Prepreg (Dry) Carbon Technology: Autoclave-cured under high heat and pressure.
• Longtail-Specific: Optimized for 600LT extended side skirt geometry.
• High Strength: Very high strength for its weight.
• 2x2 Twill Carbon Weave: Glossy pattern under UV-protective clear coat.
• Direct OEM Fit: Bolts to factory 600LT sill mounting points.
• Left + Right Set: Driver + passenger side included.

Prepreg (Dry) vs. Wet Carbon

Prepreg carbon is autoclave-cured under high heat & pressure, a more consistent weave, a controlled resin ratio — the production method widely chosen in motorsport.

Vehicle Fitment

• McLaren 600LT Coupé (2018-2020) — 3.8L V8 twin-turbo, 600 hp, Longtail aero
• McLaren 600LT Spider (2019-2020) — 3.8L V8 twin-turbo, same side profile, compatible

Important notes:

• NOT compatible with 540C/570S. They have non-Longtail side skirt geometry.
• NOT compatible with 720S (different chassis platform).

Technical Specifications

• Material: Prepreg Carbon Fiber (2x2 Twill Weave)
• Manufacturing: Autoclave Cure
• Finish: High-Gloss Clear UV-Protective Resin
• Color: Natural carbon weave black
• Origin: Europe

Installation Notes

1. Raise vehicle and remove OEM side skirt clips + bolts.
2. Clean bonding surfaces.
3. Bond carbon skirt with supplied 3M VHB tape + clip system.
4. Check panel gaps.

Care & Maintenance

Wash with pH-neutral shampoo. Apply carbon sealant every 6 months.

FAQ

Compatible with 600LT Spider?
Yes. Spider shares the same side profile as the Coupé.

Compatible with 540C/570S?
No. They use non-Longtail side skirt geometry.

Compatible with 720S?
No. 720S Super Series uses a different chassis platform.

Sold as left + right set?
Yes.

Shipping?
Ships 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. Catalog includes McLaren 600LT carbon side skirts, 600LT carbon aero parts, 540C/570S carbon parts, 720S carbon parts.