

F8X M3 M4 Carbon Fiber Rear Bumper Extensions
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Pairs well with
F8X M3/M4 Carbon Fiber Rear Bumper Extensions – F80 M3 / F82 M4 (2014–2020)
Give your BMW an aggressive finishing touch with our Carbon Fiber Rear Bumper Extensions, designed exclusively for the F8X platform. These extensions enhance the rear profile of your M3 or M4 by accentuating the factory bumper lines, adding a motorsport-inspired look that stands out while maintaining OEM-style fitment.
Key Features:
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Perfect Fitment – Engineered specifically for the F80 M3 and F82 M4 (2014–2020), ensuring seamless integration with the factory bumper.
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Premium Carbon Fiber Construction – Made with high-quality 2x2 weave carbon fiber for strength, durability, and a lightweight finish.
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Gloss UV-Protected Clear Coat – Provides a deep gloss finish while preventing yellowing, fading, or cracking over time.
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Aggressive Styling – Extends the bumper’s lower line for a sharper, sportier appearance that pairs perfectly with other carbon fiber upgrades.
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Easy Installation – Designed for straightforward installation, though professional installation is highly recommended for the best fit and finish.
Fitment:
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BMW F80 M3 (2014–2018)
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BMW F82 M4 (2015–2020)
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BMW F83 M4 Convertible (2015–2020)
Details:
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Material: Genuine carbon fiber (2x2 weave)
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Finish: High-gloss, UV-protected clear coat
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Style: OEM-style add-on extensions (pair – left & right)
Why Choose These Extensions?
Rear bumper extensions are one of the most effective ways to upgrade the back end of your M car. By adding subtle yet aggressive styling, they give your vehicle a wider, lower stance that complements diffusers, side skirts, and other carbon fiber upgrades

F8X M3 M4 Carbon Fiber Rear Bumper Extensions
Buy with Confidence
Fitment guaranteed
Engineered for your chassis. Coverage applies with professional installation. If it does not fit, we fix it.
email support
Mon to Fri, 9 am to 5 pm PST at support@cencalmotorsport.com.
Installs and local pickup
Oceanside shop. Text 831-586-0006 to book or reserve in-stock parts. Same day pickup available when in stock.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
Orders take 24–48 hours to process once placed. Made-to-order items begin production after processing, while in-stock items are prepped, packaged, and ship within 3–4 days from our Oceanside, CA location (please allow extra time for packages to arrive during high-volume periods). Some items may be backordered—if so, we’ll email you with status and options. Freight items such as wheels, exhausts, trunks, and hoods require additional handling time and may ship separately.
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Customer Support
Real BMW-savvy humans here. We’re available Mon–Fri, 10am–5pm PT by email and phone/text for install questions, fitment help, or order updates. Send your year/model/trim (VIN if handy) and we’ll point you to the right parts fast.
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FAQ’s
Quick answers to the most common questions: fitment & compatibility, order changes/cancellations, build & lead times, international shipping & duties, and returns/exchanges. Start there for instant clarity—then reach out if you still need a hand.
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Contact Us
Need help choosing parts or tracking an order? Send an email to our support team, support@cencalmotorsport.com
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About us
Cen-Cal Motorsport isn’t just a parts shop—it’s a lifestyle for BMW enthusiasts who crave performance, precision, and style. We’re all about taking your BMW to the next level with premium parts that bring out the beast under the hood while keeping its luxury vibes on point.
Your BMW isn’t just a car—it’s an experience. Whether you're upgrading for speed, handling, or simply flexing on the road, we’ve got the gear to match your passion.
Why settle for stock? Explore our lineup and see how real quality transforms the drive. Got questions? Hit us up anytime—your ride deserves nothing but the best.

















































