What vehicles is the TREVORA carbon side skirt set compatible with?

The TREVORA Carbon Side Skirt Set is compatible with the 2019 and newer BMW X3M F97 and the 2019 and newer BMW X4M F98. Fitment on X3M Competition or X4M Competition variants, or other BMW models, should be confirmed with Bulletproof Automotive before purchasing.

Does the set include both left and right skirts?

Yes. The TREVORA Carbon Side Skirt Set includes both the left and right skirts as a complete matched pair. No additional purchase is required to cover both sides of the vehicle.

Does installation require any structural modification to the vehicle?

No. The side skirts are designed to fit directly to the factory rocker panel area without requiring structural modification to the vehicle. The specific mounting method should be confirmed with Bulletproof Automotive before installation, as the source material does not detail whether clips, adhesive, or hardware are used.

Why are side skirts beneficial on the F97 X3M and F98 X4M?

The height and length of an SUV side profile means the rocker panel area spans a larger visual distance than on a conventional sports car or saloon. A carbon side skirt along the sill line creates a lower optical centre from the side, making the car read as wider and more planted. On the F97 X3M and F98 X4M, this visual grounding effect is particularly noticeable given the platform's ride height and overall proportions.

Are these skirts compatible with both the F97 X3M and F98 X4M despite their different body styles?

Yes. The F97 X3M and F98 X4M share a common floor and rocker panel structure beneath their different body shapes. The TREVORA side skirts are engineered to fit the shared rocker panel geometry of both platforms, making them compatible across both the X3M and X4M body styles in a single product.

Do these skirts work alongside the TREVORA F97 body kit?

The TREVORA carbon side skirt set and the TREVORA F97 X3M body kit are separate products within the TREVORA X3M lineup. The body kit includes a front splitter, rear diffuser, and rear spoiler; the side skirts provide the lower body sill treatment that completes the exterior upgrade across all four sides of the vehicle. Contact Bulletproof Automotive for guidance on building a complete exterior package for the F97 or F98 platform.

Description

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BP PRICING DIFFERENCE

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Description

Trevora Carbon Side Skirt Set for F97 BMW X3 M / F98 X4 M

Side skirts on a performance SUV platform carry a specific visual responsibility. The height and width of the F97 X3 M and F98 X4 M means the side profile is viewed across a longer span than a conventional sports car, and a well-fitted carbon skirt along the rocker line creates a lower optical center that makes the car read as more planted and more purposeful from every lateral angle. The TREVORA skirts address this by extending the lower body line cleanly along the factory rocker panel area, following the natural sill geometry of both the F97 and F98 without introducing elements that sit out of character with either platform’s design. The skirts are engineered to fit both the F97 X3 M and F98 X4 M despite the distinct body styles of the two platforms, which share a common floor and rocker panel structure beneath their different body shapes. Each skirt is developed for accurate fitment from the front of the rocker panel to the rear, ensuring correct panel alignment across the full length of the sill on both chassis.

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

Premium carbon fibre construction with high-gloss OEM+ finish
Engineered for accurate fitment from front to rear of the rocker panel on both platforms
Improves the visual balance of the vehicle from the side by lowering the optical centre
No structural modification to the vehicle required
Includes left and right skirts as a complete matched pair
Backed by Trevora’s industry-leading 5-year warranty

Included in Box

Carbon Side Skirts
Required mounting hardware
Installation instructions

Applications

BMW X3 M: F97 | 2019-2021
BMW X4 M: F98 | 2019-2021

Frequently Asked Questions

What vehicles is the TREVORA carbon side skirt set compatible with? The TREVORA Carbon Side Skirt Set is compatible with the 2019 and newer BMW X3 M F97 and the 2019 and newer BMW X4 M F98. Fitment on X3 M Competition or X4 M Competition variants, or other BMW models, should be confirmed with Bulletproof Automotive before purchasing.
Does the set include both left and right skirts? Yes. The TREVORA Carbon Side Skirt Set includes both the left and right skirts as a complete matched pair. No additional purchase is required to cover both sides of the vehicle.
Does installation require any structural modification to the vehicle? No. The side skirts are designed to fit directly to the factory rocker panel area without requiring structural modification to the vehicle. The specific mounting method should be confirmed with Bulletproof Automotive before installation, as the source material does not detail whether clips, adhesive, or hardware are used.
Why are side skirts beneficial on the F97 X3 M and F98 X4 M? The height and length of an SUV side profile means the rocker panel area spans a larger visual distance than on a conventional sports car or saloon. A carbon side skirt along the sill line creates a lower optical center from the side, making the car read as wider and more planted. On the F97 X3 M and F98 X4 M, this visual grounding effect is particularly noticeable given the platform’s ride height and overall proportions.
Are these skirts compatible with both the F97 X3 M and F98 X4 M despite their different body styles? Yes. The F97 X3 M and F98 X4 M share a common floor and rocker panel structure beneath their different body shapes. The TREVORA side skirts are engineered to fit the shared rocker panel geometry of both platforms, making them compatible across both the X3 M and X4 M body styles in a single product.
Do these skirts work alongside the TREVORA F97 body kit? The TREVORA carbon side skirt set and the TREVORA F97 X3M body kit are separate products within the TREVORA X3 M lineup. The body kit includes a front splitter, rear diffuser, and rear spoiler; the side skirts provide the lower body sill treatment that completes the exterior upgrade across all four sides of the vehicle. Contact Bulletproof Automotive for guidance on building a complete exterior package for the F97 or F98 platform.

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.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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Trevora Carbon Side Skirt Set for F97 BMW X3 M / F98 X4 M [TR-BF97SSCF]

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