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F8X M3/M4 PSM 4 PCS REAR DIFFUSER
Premium 4-piece PSM rear diffuser designed for F8X M3/M4 models. Boosts aerodynamic performance with enhanced downforce while delivering an aggressive, track-inspired look. Fits seamlessly with your BMW's rear bumper for a polished finish. Ideal for performance-focused drivers.
Regular price
$1,000.00 USD
per
Carbon Finish
Forged + Color Flakes
Color Flakes (apply only to the Forged finish)
None
Compatible BMW Models
Please verify your model and year before ordering. Contact us if you have any questions regarding fitment.
Installation & Fitment Guarantee.
BMW-Specific Fitment. This part is engineered using OEM specifications for a near-perfect alignment with factory mounting points.
We strongly recommend professional installation by a certified body shop experienced in high-end carbon fiber aero components to ensure precise fitment and flawless alignment. Asjustments/trimming might be required
*Product appearance may vary slightly from images due to the handcrafted manufacturing process.
Production Time
This piece is individually crafted through a refined, detail-driven process. The estimated production time is 2-3 weeks, ensuring precision, exclusivity, and a finish made specifically for your vehicle—not mass produced.
Care Guide
Cleaning: Use only a mild automotive soap and a soft microfiber wash mitt. Avoid harsh chemicals, abrasive cleaners, or stiff brushes.
Protection: Treat your carbon fiber component as you would your vehicle's paint. Apply a high-quality automotive wax, sealant, or ceramic coating every 3-6 months.
Automated Washes: Avoid automated car washes. The stiff brushes and high-pressure jets can scratch the clear coat and potentially damage the edges of the component.
F8X M3/M4 PSM 4 PCS REAR DIFFUSER
Regular price
$1,000.00 USD
per
F8X M3/M4 PSM 4 PCS REAR DIFFUSER
Carbon Finish
Forged + Color Flakes
Color Flakes (apply only to the Forged finish)
None
Choose the finish that defines your build.
Each texture is crafted with precision and individuality, finished with a premium UV-resistant clear coat for lasting depth and durability.
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The Carbon Boost Advantage
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We are the dedicated specialists for the platforms that demand the best. Reiterate the core value proposition: Hand-Laid Precision, Vacuum Infusion Technology, and Structural Warranty.
Shipping & Fulfillment FAQ.
Where will my product be shipped from?
We ship your order directly from the Carbón Boost facility in San Diego, California, using leading express shipping providers such as UPS, FedEx, and DHL.
How long does shipping take?
Production time varies by component. Please refer to the Production Time section above for item-specific estimates.
Once production is complete, orders typically arrive within 10–15 business days, depending on the selected carrier.
Tracking information will be provided once your order ships.
Do you offer shipping insurance?
Shipping insurance is optional and can be purchased at the checkout stage. We professionally crate all shipments, but we highly recommend purchasing insurance to protect your investment against transit damage.
What does the shipping cost?
Shipping prices are calculated based on your address and the size/weight of the component. The final shipping cost will be displayed at the checkout stage once you input your delivery address.
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