
F8X M3/M4 VRS Upper Difffuser Carbon Fiber (Open Box, Tested & Scratched)
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Pairs well with
Elevate your rear-end styling with the VRS Carbon Fiber Upper Diffuser for the BMW F8X M3 and M4. Designed to accentuate the car’s aggressive aesthetic and aerodynamic profile, this piece delivers a true motorsport-inspired look. Crafted from premium carbon fiber and precision-tested for fitment, it enhances both form and function—perfect for enthusiasts who demand style and performance.
Please note: this is an open-box unit that was used for test fitting and shows light surface scratches. Priced accordingly and offered at a steep discount.
Product Features
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Authentic carbon fiber construction with high-gloss clear coat
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Precision fitment confirmed for F8X M3 / M4 models
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Enhances rear-end aggression and complements existing carbon aero
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Lightweight and durable for both street and track applications
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Open box – tested for fitment, minor cosmetic scratches present
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Final Sale – No Returns or Exchanges
Compatibility
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BMW F80 M3 (2015–2018)
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BMW F82 M4 Coupe (2015–2020)
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BMW F83 M4 Convertible (2015–2020)
Installation
Professional installation is strongly recommended to ensure proper alignment and secure fitment.
Price: $99 (Regularly $399)
Condition: Open Box / Lightly Scratched / Final Sale

F8X M3/M4 VRS Upper Difffuser Carbon Fiber (Open Box, Tested & Scratched)
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
Buy with confidence
Fitment guarantee
Engineered for your BMW. Guarantee applies with professional installation — if it doesn’t fit, we fix it.
Secure checkout
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Real Support
Talk to real enthusiasts. Our team answers every email same business day (Mon–Fri, 9AM–5PM PST) so you’re never left hanging when it comes to your build.

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 look 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.


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We brought this E92 335i back from the dead — now it’s your chance to take the keys. From the yellow-powdered turbo and short-throw shifter to our full valved catback system, every inch of this build represents what CenCal Motorsport stands for: no halfway builds.
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