F30 M Performance Carbon Fiber Diffuser
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Transform the rear end of your BMW F30 or F31 with the M Performance Carbon Fiber Rear Diffuser, designed to deliver both style and performance. This diffuser is a direct fitment for 2011-2019 BMW 3 Series (F30/F31) with M Sport bumpers, providing an aggressive and aerodynamic upgrade to your vehicle. Crafted with precision and quality, the carbon fiber construction ensures a lightweight, high-performance component that looks as good as it performs.
Product Details & Features:
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Perfect Fitment for F30/F31: Designed specifically for the 2011-2019 BMW 3 Series F30/F31 with M Sport bumpers. No modifications required for installation.
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Premium Carbon Fiber: Manufactured from high-quality, lightweight carbon fiber to improve aerodynamics and reduce weight, offering superior performance and a bold, sporty appearance.
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Enhanced Aerodynamics: The diffuser’s design helps reduce drag and turbulence, improving airflow and increasing stability at high speeds, making it perfect for both daily driving and track enthusiasts.
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Subtle Yet Powerful Impact: The sleek carbon fiber finish not only enhances the overall look of your vehicle but also boosts downforce, giving your car a more aggressive and refined aesthetic.
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Glossy Finish: The high-gloss carbon fiber finish provides a smooth, premium look that is resistant to the elements, ensuring lasting quality.
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Easy Installation: Designed to fit directly onto your BMW with M Sport bumpers, this diffuser requires minimal effort for installation and does not require any modifications to your car.
Whether you're looking to enhance your BMW's appearance or improve its performance on the road, the F30 F31 M Performance Carbon Fiber Rear Diffuser is the perfect upgrade. Give your 3 Series that aggressive M Sport look with superior aerodynamics and lightweight construction.
Fitment: BMW F30/F31 3 Series (2011-2019) with M Sport Bumpers
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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Fitment guarantee
Engineered for your BMW. Guarantee applies with professional installation — if it doesn’t fit, we fix it.
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About Us
What started as a group of BMW enthusiasts tired of overpriced parts and limited options is now a brand trusted by thousands of owners nationwide.
We designed our own product lines from the ground up and built the production infrastructure to make them happen. No middlemen, no compromises. Just the parts we actually wanted on our own builds.
Now we operate out of Oceanside, California, engineering valved exhaust systems, carbon fiber, forged wheels, front-mount intakes, and more. Everything is designed in-house, tested on real platforms, and stocked locally for fast shipping.
This is just the beginning.