BMW 3-Series (G20/G21) Performance Side Skirts
M-Performance Style Side Skirt Extensions | BMW G20 & G21 3 Series
Enhance the lower profile of your BMW 3 Series with our precision-engineered Side Skirt Extensions. Designed to bridge the gap between the front and rear wheels, these extensions give both the G20 Sedan and G21 Touring a wider, more aggressive "ground-hugging" stance without the need for lowering springs.
Available Finishes
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High-Gloss Black: Finished in a deep, mirror-like Piano Black. This is the ultimate "Shadowline" upgrade, designed to perfectly match the factory gloss black window trim, mirrors, and front grilles for a cohesive, OEM+ look.
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Carbon Fiber Look: Provides the high-end, motorsport aesthetic of real carbon fiber. Using premium hydro-dipping technology, we apply a sharp 2x2 twill weave pattern sealed under a UV-resistant high-gloss clear coat for maximum depth.
Product Highlights
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Universal 3-Series Fitment: Engineered to fit the rocker panels of both the 2019+ G20 Sedan and the G21 Touring (Wagon) seamlessly.
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Durable ABS Construction: Unlike fiberglass alternatives, these are made from high-impact ABS plastic. They are flexible enough to absorb road vibrations and durable enough to resist stone chips and debris.
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Visual Lowering Effect: These extensions create a sharp "blade" profile along the side of the car, visually lowering the center of gravity for a more athletic appearance.
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All-Weather Protection: Every set is treated with a UV-stable coating to ensure your gloss black stays deep and your carbon pattern remains crisp without fading over time.
Technical Specifications
| Feature | Details |
| Material | High-Impact ABS Plastic |
| Finish Options | Gloss Black / Carbon Fiber Look |
| Style | M-Performance Slim-Blade |
| Chassis Support | BMW G20 (Sedan) & G21 (Touring) |
| Kit Includes | Left & Right Side Extensions + Mounting Hardware |
Installation & Care
This is a straightforward DIY upgrade that significantly changes the look of your vehicle. For the most secure fit, we recommend a "drill-and-bolt" approach.
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Preparation: Thoroughly clean the underside of your factory side skirts with isopropyl alcohol to remove road grime and wax.
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Alignment: Use the pre-applied 3M adhesive tape to temporarily position the extensions. Having a second person hold the other end ensures perfect front-to-back centering.
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Securing: Use the provided self-tapping screws to fix the extensions to the underside of the rocker panels. This ensures they remain rock-solid even at highway speeds.
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Maintenance: Simply wash and dry as you would the rest of your car. Both finishes are compatible with standard automotive waxes and ceramic coatings.
Pro Tip: Pairing these side skirts with a Gloss Black Front Lip and Rear Spoiler creates a complete 360° aerodynamic kit that transforms the aesthetic of the G20 from standard to "M-Sport Plus."