G26 4 Series & i4 Gloss Black F1 LED Diffuser
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Add race-inspired aggression to your BMW with the CenCal Motorsport Gloss Black F1 LED Rear Diffuser, designed for the G26 4 Series and i4. This diffuser brings a perfect balance of sharp styling and functional performance, transforming the rear of your vehicle with a motorsport-inspired F1-style LED brake light that makes a bold statement on both street and track.
Constructed from high-quality ABS plastic and finished in a deep gloss black coating, this diffuser offers exceptional durability, light weight, and an elegant OEM+ appearance. Designed with precision OEM fitment, it installs directly onto factory mounting points with no drilling or modification required, ensuring a clean and secure fit every time.
Whether you’re upgrading for a more aggressive look or completing a full aero package, the CenCal Motorsport F1 LED Diffuser adds the perfect finishing touch to your G26’s rear-end styling.
Product Features
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Premium Gloss Black Finish – High-gloss coating delivers a sleek, modern appearance that complements any factory color.
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Aggressive F1-Inspired Design – Aerodynamic fins and sporty contours create a bold, track-ready rear profile.
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Integrated F1 LED Brake Light – Functional LED center light adds a distinctive motorsport-inspired detail and enhanced visibility.
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OEM-Level Fitment – Precision-engineered for the G26 chassis; installs directly using factory hardware.
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Durable ABS Construction – Lightweight yet impact-resistant material designed to endure daily use and harsh conditions.
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UV-Resistant Surface – Prevents fading, cracking, and dulling, ensuring a long-lasting shine.
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Direct Bolt-On Installation – No cutting or drilling required; installs easily with a perfect factory fit.
Compatibility
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BMW G26 4 Series Gran Coupe (2022–2024+)
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BMW i4 (G26 Platform, 2022–2024+)
(Fits M Sport and M Performance rear bumper configurations.)
Installation
Professional installation is strongly recommended to ensure proper LED wiring, precise alignment, and a secure, flush OEM-quality fitment.
G26 4 Series & i4 Gloss Black F1 LED Diffuser
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.
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Shop with confidence. Every order runs through encrypted PCI-compliant checkout, and flexible payments are available with Affirm - so you can mod now, pay later.
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.
win a single turbo e92 335i
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.
Every purchase of merch or quick entry gets you closer to owning this car. Whether you’re a die-hard BMW enthusiast or just chasing the dream of a true street-built machine — this is your shot.