McLaren 540C/570S (2015-2020) Prepreg Dry Carbon Fiber SN Spoiler

Engineered for McLaren 540C/570S Sports Series owners (2015-2020), this Prepreg Dry Carbon Fiber SN Spoiler delivers aggressive rear-deck character and downforce contribution at speed. Manufactured in Europe to factory-spec mounting tolerances and quality-controlled by BYC Performance, this McLaren 540C SN carbon spoiler bolts directly to OEM mounting points.

Matched to the high-speed character of the 540C/570S 3.8L V8 twin-turbo M838TE engine (540C 533 hp, 570S 562 hp), the aggressive SN-style spoiler is both an aesthetic and aerodynamic upgrade. Autoclave-cured prepreg carbon delivers superior heat, UV and mechanical resistance.

Key Features

• Prepreg (Dry) Carbon Technology: Autoclave-cured under high heat and pressure.
• SN-Style Aero: Aggressive spoiler profile tailored to Sports Series rear deck.
• Downforce Contribution: Adds downforce on rear axle at high speeds.
• High Strength: Very high strength for its weight.
• 2x2 Twill Carbon Weave: Authentic pattern under UV-protective clear coat.
• Direct OEM Fit: Bolts to factory 540C/570S rear-deck mounting points.

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 540C Coupé (2015-2020) — 3.8L V8 twin-turbo (533 hp)
• McLaren 570S Coupé (2015-2020) — 3.8L V8 twin-turbo (562 hp)
• McLaren 570S Spider (2017-2020) — rear deck spoiler area shared, compatible

Important notes:

• Compatibility with McLaren 570GT is limited — 570GT's extended rear glass (Spirit-of-Sports-Series) can create panel-line variation; verify during professional installation.
• NOT compatible with McLaren 600LT. The 600LT Longtail aero already ships with a fixed spoiler.
• NOT compatible with McLaren 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. Clean the rear deck surface.
2. Apply 3M VHB tape + supplied hardware to spoiler base.
3. Align and bond the spoiler.
4. Allow 24 hours for full cure.

Care & Maintenance

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

FAQ

What is SN?
SN is a styling code used in our catalog, representing an aggressive Sports Series rear aero character.

Compatible with 570S Spider?
Yes. Spider shares the same rear deck spoiler area as the Coupé.

Compatible with 600LT?
No. 600LT already ships with a Longtail fixed spoiler.

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

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

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 540C carbon spoilers, 570S SN carbon spoilers, 600LT carbon aero, 720S carbon parts.