Seibon RS14HDCV2D-SI SI-Style Carbon Fiber Rear Spoiler

The Seibon RS14HDCV2D-SI is an Si-style carbon fiber rear spoiler built for enthusiasts who demand both form and function. Constructed from professional-grade 3K 2x2 twill weave carbon fiber, this spoiler delivers a race-inspired aesthetic straight out of the box — no painting required. Its aerodynamic design helps increase downforce for improved traction, making it equally at home on the track or as a show-stopping upgrade for street use.

Seibon Carbon hand-crafts each component using the highest-grade raw materials, maintaining a consistent weave pattern throughout. The optimized carbon/resin ratio produces exceptional stiffness and added structural strength while keeping weight to an absolute minimum — up to 50% lighter than a comparable OEM panel. Every spoiler is finished with a chip-resistant, gloss clear coat for a long-lasting, show-ready shine backed by a 6-month limited clear coat warranty.

Key Features:

• Si-style design replicating the factory Honda Civic Si spoiler profile
• Professional-grade 3K 2x2 twill weave carbon fiber construction
• One-piece carbon sheet construction for a uniform, consistent weave pattern
• Optimized carbon/resin ratio for maximum stiffness and strength
• Up to 50% lighter than the stock OEM panel
• Aerodynamically designed to improve downforce and rear-end stability
• Chip-resistant, high-gloss clear coat finish — show-ready, no painting required
• 6-month limited clear coat warranty
• Rigorously inspected through Seibon's multi-step quality control process

Seibon Carbon components have been featured at national racing events, auto shows, and in major automotive publications worldwide, making Seibon one of the most recognized names in carbon fiber aftermarket body components.