BMW F8X M3 M4 Exotics Style Carbon Fiber Diffuser
Fitment Guarantee
6000+ Happy Customers
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Real Human Support
Pairs well with
RW Carbon has a huge selection of CF rear diffuser for the F8x M3 and M4 models so picking one can be difficult. However, this Exotics style carbon fiber diffuser blends aggressive with subtle styling. We hand craft each F8X Exotics style diffuser from genuine 2x2 carbon fiber just like all of our other M3/M4 parts. As always, fitment and quality is guaranteed by us - So purchase with confidence. To ensure the F8x M3 and M4 diffuser maintains a shiny finish and stands up to the elements we complete each with a UV resistant clear coat. Installation for the BMW F8X Exotics style carbon fiber diffuser is 100% bolt on requiring no special modifications to your vehicle. When you purchase your F8x diffuser from RW you are receiving a quality product that is shipped from our California warehouse. This diffuser will fit all 2015-2020 BMW F80 M3 and F82 F83 M4 models. If you have any further questions please contact us.
BMW F8X M3 M4 Exotics Style Carbon Fiber Diffuser
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.