




G82 M4 Carbon Fiber Rear Splitter/Spat Extensions
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Pickup available at LAB X Premium
Usually ready in 24 hoursIn stock! Ships within 1-2 business days.
2-Year Warranty (Defects)
Pairs well with
LAB Dry Carbon Rear Splitter Side Extensions — BMW G82 M4 Competition
Elevate Your G82 M4 Comp’s Rear Profile & Performance
Transform the rear of your BMW G82 M4 Competition with the LAB Rear Splitter Side Extensions — purpose-built to sharpen your vehicle’s stance while enhancing aerodynamic efficiency. Designed to integrate flawlessly with the factory diffuser lines, these extensions deliver a more aggressive motorsport-inspired finish without compromising fitment or quality.
True Dry Carbon Construction – Performance You Can See & Feel
Crafted from genuine pre-preg dry carbon fiber, these side extensions are cured under controlled conditions to achieve:
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Significantly lighter weight compared to standard carbon parts
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Increased structural strength and rigidity
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Superior consistency in weave and finish
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Reduced risk of warping or deformation over time
This is not just cosmetic carbon — this is performance-grade construction built for long-term durability and elite visual quality.
Precision Quality & Premium Finish
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OEM-style fitment for a seamless, factory-plus appearance
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High-gloss 2x2 weave delivering a deep, exotic carbon finish
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UV-resistant clear coat to prevent fading, yellowing, and oxidation
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Built to withstand both daily driving and performance conditions
Designed to Pair Perfectly with MHC Side Skirt Extensions
For a cohesive, performance-focused profile, these rear splitter side extensions are best paired with the LAB MHC Side Skirt Extensions. Together, they create a continuous aerodynamic flow from side to rear, visually lowering the vehicle and enhancing side-to-rear transition for a more aggressive and balanced look.
This combination not only elevates aesthetics but reinforces a unified aero package that accentuates the G82 M4 Competition’s factory body lines.
⚠ Professional installation is highly recommended.
Upgrade your G82 M4 Competition with LAB Dry Carbon Rear Splitter Side Extensions — a premium solution engineered for drivers who demand superior materials, flawless fitment, and a complete aerodynamic presence.

G82 M4 Carbon Fiber Rear Splitter/Spat Extensions
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Whether it’s fitment questions, order updates, or install guidance, our team’s here to make sure you get the right parts, the first time. Fast replies, real support, no runaround.
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Shipping Information
We ship fast and nationwide. Most in-stock items leave our SoCal warehouse within 1–3 business days. You'll get tracking as soon as it’s on the way. Need it quicker? Expedited options are available at checkout.
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Customer Support
Questions about your order? Our support team is here to help every step of the way. Reach us by email or DM.
Fast responses, real solutions, no bots.
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Contact Us
Whether it’s about your order, install guidance, or wholesale inquiries, don’t hesitate to reach out.
📞 Phone: +1 (949) 371-5212
📧 Email: orders@legendaryautobuilders.com
📍 Visit Us: 21087 Commerce Pointe Drive, Walnut, CA 91789We’ll always do our best to get back to you quickly and take care of you the right way.

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When it comes to proper builds, FreshhKiicks knows what is takes to stand out. That's why he chose to go with LAB parts for his LCI X3M.
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