Seibon MB-Style Carbon Fibre Rear Spoiler – 2020+ Toyota GR Supra (A90) | RS20TYSUP-MB

Seibon’s MB-Style carbon fibre rear spoiler for the 2020+ Toyota GR Supra (A90). Hand-laid carbon fibre construction with consistent weave pattern, glossy UV-protective clear coat, and Seibon’s standard fitment engineering for the A90 trunk lid. A trunk-mounted spoiler upgrade for GR Supra builds prioritising a clean, low-profile aero aesthetic in genuine carbon fibre.

MB-Style Design

Seibon’s MB-Style designation refers to a specific spoiler profile — a low-profile trunk-mounted blade design with a clean, refined aesthetic suited to the A90 Supra’s body lines. Lower and more subtle than an aggressive GT-style wing, the MB-Style spoiler adds a purposeful aero element to the trunk without visually overwhelming the car’s proportions. Confirm the spoiler profile against product images before ordering to ensure the style matches your build intent.

Carbon Fibre Construction

Seibon uses hand-laid carbon fibre construction with a high carbon/resin ratio — more carbon fibre per unit weight means higher stiffness and strength compared to lower-quality carbon components with excessive resin content. Key construction details:

• Hand-Laid: Each component is hand-laid rather than machine-produced — allows consistent fibre orientation and weave alignment across the full panel surface
• Consistent Weave Pattern: Seibon’s production process maintains a uniform 2x2 twill weave pattern across the entire visible surface — no misaligned or inconsistent weave sections
• Glossy Clear Coat: UV-protective glossy clear coat finish — protects the carbon weave from UV yellowing and surface degradation. Seibon specifies their clear coat does not chip or flake under normal use
• High Carbon/Resin Ratio: Higher structural stiffness and strength-to-weight ratio than components with excessive resin content — the part is lighter and stiffer than an equivalent fibreglass or high-resin carbon component

Fitment Note

This spoiler is listed for the 2020 Toyota GR Supra — confirm compatibility with your specific model year with Seibon before ordering, as the A90 GR Supra has seen minor exterior updates across production years that may affect panel fitment. Mounting hardware and installation method should be confirmed from Seibon’s installation documentation before drilling or bonding to the trunk lid.

Key Features

• Hand-Laid Carbon Fibre: Seibon’s standard construction — consistent weave, high CF/resin ratio, strong and stiff
• MB-Style Profile: Low-profile trunk blade design — confirm style against product images
• Glossy Clear Coat: UV-protective finish — maintains carbon appearance long-term
• Seibon Fitment Engineering: Engineered specifically for the A90 GR Supra trunk lid — Seibon’s over 20 years of carbon fibre component production experience applied to A90 fitment
• Weight: 25 lbs — confirm this matches the spoiler-only weight vs. packaged shipping weight before installation planning

Confirm model year compatibility with Seibon before ordering — listed for 2020 GR Supra, verify fitment for subsequent model years. Review Seibon’s installation documentation before drilling or bonding — carbon fibre exterior components typically require professional installation. Carbon fibre requires UV-protective clear coat maintenance to prevent yellowing — avoid prolonged direct sun exposure on unprotected CF surfaces. Confirm spoiler profile and dimensions against product images and Seibon’s specification sheet before ordering.

Specifications

• Brand: Seibon
• Part Number: RS20TYSUP-MB
• Style: MB-Style
• Material: Hand-laid carbon fibre
• Finish: Glossy clear coat
• Position: Rear trunk spoiler
• Application: 2020+ Toyota GR Supra (A90)
• Weight: 25 lbs