Is your carbon fiber real?

All of our products are made from genuine carbon fiber, not hydro-dipped or vinyl wrapped. We source high-quality materials for each piece, and every product is constructed using industry-standard methods including dry carbon for specific high-performance applications. No corners are cut. No filler materials.

Absolutely not. None of our products are drop shipped. Every item is manufactured at our dedicated facility and shipped to our Chicago-based warehouse, where it undergoes a full inspection and quality control process before being delivered to you. We also offer a selection of custom designs created in-house that are exclusive to Insignist Motorsports — ensuring you're not just getting generic parts passed from one supplier to another.

What’s the difference between dry carbon and regular carbon fiber? Why is dry carbon more expensive?

Dry carbon fiber is lighter, stronger, and significantly more expensive to produce than wet (gloss) carbon. While wet carbon is layered with resin and cured with a gel coat for aesthetics, dry carbon is cured under vacuum pressure in an autoclave — the same process used for Formula 1, aerospace, and race-spec builds. This makes it the premium choice for anyone who prioritizes performance, weight savings, and structural integrity.

Is everything on your site in stock?

All of our products are always available to order, a lot are in stock and others are crafted to order, entering production shortly after your purchase. Because we’re a growing business, we balance warehouse space and customer demand, so some orders may take a little longer to fulfill. That said, we maintain an 'In-Stock & Ready-to-Ship' section, clearly displayed on our homepage and in the navigation menu. You can filter by BMW model and instantly view parts ready to ship from Chicago. We’re transparent with our customers, and you can always check your order status by emailing insignist.com@gmail.com or using the Contact Us page. We typically respond within 24–48 hours.

Yes! We want you to have your item as soon as possible. Items listed in our Chicago warehouse under 'In Stock – Ready to Ship' usually ship within 1–3 business days. If it's crafted to order, it enters our tracked production queue and ships when ready. You can always request updates as your order progresses.

Do you ship to Norway?

Yes! We are a VOEC-registered seller, which means Norwegian customers pay 25% VAT at checkout and avoid surprise fees on delivery.👉 Please note: VOEC applies only to items priced under 3,000 NOK per unit (excluding shipping). Our checkout system currently collects VAT on all items, even those above this threshold. If your order includes a product over 3,000 NOK, we will fully refund the VAT within 24–48 hours to comply with Norwegian regulations. This ensures you only pay what’s required and keeps the process seamless for you.We know this is a small extra step, and we truly appreciate your understanding. It’s part of our commitment to transparency and making your experience as smooth as possible.If you have any questions or concerns, feel free to contact us at insignist.com@gmail.com or through our Contact Us page and we’ll be happy to help!

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M5 Style Carbon Fiber Rear Diffuser for BMW 5 Series G30 (2017-2020)

Name: M5 Style Carbon Fiber Rear Diffuser for BMW 5 Series G30 (2017-2020)
Brand: Insignist Motorsports
SKU: JC-HLY124-CF
Price: 519.99 USD
Availability: InStock

$519.99 USD

Sale Sold out

Crafted to Order — Ready in 3–5 weeks with updates

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M5 Style Carbon Fiber Rear Diffuser for BMW 5 Series G30 (2017–2020)
PRE-LCI M Sport Rear Bumper Fitment Only

Aggressive Rear-End Styling Inspired by the F90 M5

Upgrade your G30 5 Series with the M5 Style Carbon Fiber Rear Diffuser, designed to replicate the bold, race-inspired look of the M5 F90. The sculpted fins and aggressive lines enhance your BMW’s stance while improving rear-end aerodynamics and adding premium flair.

Why choose our M5 Style Carbon Fiber Rear Diffuser?

– Premium Carbon Fiber: Built from high-quality carbon fiber for lightweight strength and durability.
– M5-Inspired Design: Aggressive styling modeled after the iconic F90 M5 rear diffuser.
– Aerodynamic Function: Improves airflow and adds motorsport-inspired presence.
– OEM+ Fitment: Precision engineered for a direct bolt-on installation with no modifications.
– UV & Heat Resistant: Gloss clear-coated surface protects against fading, cracking, and heat exposure.

Key Fitment:
– BMW G30 5 Series Sedan (2017–2020) – 530i, 540i, M550i
– PRE-LCI M Sport Rear Bumper Only

Upgrade your BMW with the Insignist Motorsports M5 Style Carbon Fiber Rear Diffuser, combining aggressive styling with OEM+ precision for a performance-driven finish.

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M5 Style Carbon Fiber Rear Diffuser for BMW 5 Series G30 (2017-2020)

M5 Style Carbon Fiber Rear Diffuser for BMW 5 Series G30 (2017-2020)

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