Complete the side profile of your BMW F97 X3M or F98 X4M with these Carbon Fibre SQ Style Side Skirts — a pair of full-length extensions engineered to lower the visual stance and tie the front and rear styling together.
The SQ Style profile runs the full length of the sill with a defined lower edge and sculpted leading and trailing corners, closing the visual gap between the wheels and giving the car a longer, lower look from the side.
These skirts are produced in pre-preg carbon fibre — a process that cures pre-impregnated sheet under heat and pressure, delivering a tighter weave, more consistent surface and better strength-to-weight than standard wet-lay carbon.
Whether you are building a clean street car or a complete carbon fibre exterior package, these side skirts are the piece that makes a front lip and rear diffuser read as one design rather than separate additions.
Key Features
Pre-Preg Carbon Fibre Construction
Cured under heat and pressure for a tighter weave, more consistent finish, and a better strength-to-weight ratio than standard wet-lay carbon.
Full-Length SQ Style Profile
Runs the complete length of the sill with a defined lower edge, lowering the visual stance and lengthening the side profile.
High-Gloss Exposed Weave
A deep, consistent carbon weave under high-gloss lacquer delivers an aggressive OEM+ appearance.
Sold as a Matched Pair
Supplied as a left and right set, so both sides match in weave direction and finish.
Model-Specific Fitment
Shaped to the F97 and F98 sill rather than adapted from a universal extension.
Performance & Styling Benefits
• Lower, longer visual stance
• Premium pre-preg carbon construction
• Lightweight exterior upgrade
• Deep exposed carbon weave finish
• Designed to complement the vehicle's aerodynamic profile
• Ties a front lip and rear diffuser into one cohesive design
Vehicle Fitment
BMW F97 X3M / X3M Competition
BMW F98 X4M / X4M Competition
Please Note
Professional installation is strongly recommended.
Supplied as a pair. As with all carbon fibre exterior components, minor adjustments may be required during installation to achieve optimal fitment and alignment.
Slight variations in weave pattern may occur between products due to the nature of carbon fibre manufacturing.
Why Choose Proven Performance Parts
We specialise in high-performance parts for European vehicles — particularly Volkswagen GTI & R models, Audi S/RS, and other VAG platforms. Every product we offer is carefully selected for its quality, fitment, and real-world performance — tested by enthusiasts, for enthusiasts.
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