Trevora Carbon PR-1 Side Skirts for G8x BMW M4

The side profile of the G82 and G83 M4 is one of the car’s most read angles, and the PR-1 side skirts are built to sharpen it. The design adds visual width and a more aggressive lower body presence that complements the M4’s existing aerodynamic character without introducing elements that compete with the factory lines. The result is a lower body treatment that reads as more purposeful and motorsport-influenced from every lateral angle, while staying within the proportions the G82 and G83 body style establishes.

Carbon Fiber Construction

• Constructed using high-quality autoclave-cured pre-preg carbon fiber for superior strength-to-weight ratio. Each component is engineered and prototyped in-house using advanced CAD modeling and 3D scanning to achieve precise factory-plus fitment. A UV-resistant clear coat protects the clean weave pattern and maintains finish quality over time, ensuring long-term durability in both daily driving and high-performance environments.

Features

• Pre-preg carbon fiber construction with 2×2 twill weave and UV-resistant clear coat finish
• PR-1 design increases visual width and planted lower body stance of the G82 and G83 M4
• OEM-level fitment and alignment using factory mounting locations
• Superior strength-to-weight ratio and consistent surface finish versus wet-laid carbon alternatives
• UV-resistant clear coat for long-term finish durability
• Supplied hardware included for installation
• Backed by Trevora’s industry-leading 5-year warranty

Included in Box

• PR-1 Side Skirts
• Required mounting hardware
• Installation instructions

Applications

• BMW M4: G82, G83 | 2021-present

Frequently Asked Questions

• What BMW models are the TREVORA PR-1 side skirts compatible with? The TREVORA PR-1 Pre-preg Carbon Fiber Side Skirts are designed for the 2021 and newer BMW M4 G82 Coupe and the 2021 and newer BMW M4 G83 Convertible. Fitment on other BMW models including the G80/G81 M3 is not confirmed from the source material.
• How do the PR-1 side skirts install on the G82 and G83? The side skirts align to factory mounting locations on the lower body of the G82 and G83 and are secured using the supplied hardware. Proper surface preparation is required before installation. Professional installation is recommended. Whether adhesive is used alongside the hardware should be confirmed with Bulletproof Automotive before fitting.
• What is the UV-resistant clear coat and why does it matter on a side skirt? The UV-resistant clear coat is a protective layer applied over the carbon fiber surface that shields the weave and resin from ultraviolet degradation. Side skirts run the full length of the lower body and are consistently exposed to direct sunlight. Without UV protection, the clear coat and underlying resin can degrade over time, affecting the appearance of the surface. The UV-resistant formulation maintains the high-gloss finish of the skirts across long-term use.
• What is the difference between the TREVORA PR-1 side skirts for the G82/G83 M4 and the PR-1 side skirts for the G80/G81 M3? Both the G82/G83 M4 and G80/G81 M3 variants carry the PR-1 designation and share the same pre-preg carbon construction standard and design approach, but they are engineered to the specific lower body geometry of each platform. The G82/G83 M4 skirts are developed for the coupe and convertible body styles of the M4; the G80/G81 M3 skirts are developed for the sedan and touring body styles of the M3. The two sets are not interchangeable.
• What is pre-preg carbon fiber and why is it better than wet-laid carbon on a side skirt? Pre-preg carbon fiber is manufactured by pre-impregnating the carbon fabric with a precisely controlled resin ratio before the component is formed and cured. This produces a more consistent 2×2 twill weave and superior surface quality compared to wet-laid carbon, where resin is applied manually and distribution is harder to control across a long panel. On a side skirt that runs the full length of the lower body and is visible at close range from standing height, weave consistency and finish quality across the full length of both skirts are directly apparent; pre-preg construction ensures both.
• Do the PR-1 side skirts work alongside other TREVORA G82/G83 M4 components? Yes. The PR-1 side skirts are part of the TREVORA PR-1 design program for the G8X M3 and M4 platform, which also includes the PR-1 front splitter for the G80/G81/G82/G83 platform. Contact Bulletproof Automotive for guidance on building a complete exterior package for the G82 or G83 M4.

About Trevora

Trevora (formerly TRE) is a UK-based automotive aero and styling brand specializing in high-performance pre-preg carbon fiber components. Founded in 2018, Trevora has grown into a globally recognized name in BMW aftermarket parts, known for its OEM+ philosophy, precision engineering, and uncompromising attention to detail. Every component is designed, engineered, and prototyped in-house using advanced CAD modeling and 3D scanning to achieve precise factory-plus fitment. By utilizing autoclave-cured pre-preg carbon fiber, Trevora delivers a superior strength-to-weight ratio while eliminating inconsistencies found in traditional wet-lay carbon. All products are backed by Trevora’s industry-leading 5-year warranty.