BMW M5 F90 | Prepreg Dry Carbon Fiber Vented Front Fender Set

BMW M5 F90 Prepreg Dry Carbon Fiber Vented Front Fender Set

Engineered for BMW M5 F90 owners who demand both aggressive motorsport styling and thermal performance, this Prepreg (Dry) Carbon Fiber Vented Front Fender Set (left + right pair) channels hot air out of the engine bay through functional louvers. Made to factory-spec mounting tolerances by leading manufacturers around the world and quality-controlled by BYC Performance, this BMW M5 F90 carbon vented fender set bolts directly to OEM mounting points.

If you're building a serious BMW M5 F90 tuning project and need a part that exceeds the OEM steel fender in performance and finish, this dry carbon vented fender set is built for you. Autoclave-cured prepreg carbon fiber is noticeably lighter than wet-lay parts, more structurally consistent, and offers outstanding UV resistance. Engineered to match the aggressive character of the S63B44T4-powered F90 M5, 600 hp standard and 617 hp Competition, these fenders help lower engine bay temps during extended track use.

Key Features

• Prepreg (Dry) Carbon Technology: Pre-impregnated carbon plies cured in an autoclave under high heat and pressure ensure homogeneous resin distribution and a consistent weave.
• Functional Heat Vents: Open louvers extract hot air from the engine bay into the wheel arches; helps lower engine temps during extended track sessions.
• Matched L+R Pair: Symmetric carbon weave on left and right fenders, supplied together as a set.
• Weight Saving: Noticeably lighter than the OEM steel fender.
• Race-Grade Strength: Carbon fiber offers very high strength for its weight.
• 2x2 Twill Carbon Weave: Authentic carbon fiber pattern under a high-gloss UV-protective clear coat.
• Direct OEM Fit: Plug & play installation on factory F90 M5 (pre-LCI) fender bolt locations. Includes OEM side-marker housing cutout.

Prepreg (Dry) Carbon vs. Wet Carbon: Which Is Better?

Most aftermarket carbon parts are made using wet lay-up, where resin is applied by hand and cured at room temperature, leaving air voids and inconsistent weight. Prepreg (dry) carbon:

• Cured in an autoclave under high heat and pressure → a more consistent weave
• A controlled resin ratio → lighter and stronger
• The production method widely chosen in motorsport
• Minimal UV fading over years of use

Installation Notes

Installing the BMW M5 F90 carbon vented fender set requires full fender replacement. Professional installation is recommended:

1. Raise the vehicle, remove front wheels, and detach inner liners.
2. Disconnect side marker harness and remove OEM fender bolts.
3. Loosen bolts at door hinge area and A-pillar base.
4. Align the new carbon fender; transfer the OEM side marker housing.
5. Tighten bolts gradually to the manufacturer's recommended torque; verify gap to bumper and hood.

Care & Maintenance

Wash with pH-neutral car shampoo. Apply carbon-safe sealant every 6 months. Keep pressure washer nozzle at least 30 cm from surface.

FAQ

Does this fit the F90 LCI (2021+)?
No. The F90 LCI has different front fender geometry; LCI owners should contact BYC for fender availability.

Compatible with both standard M5 and M5 Competition?
Yes. This fender set fits both 2018-2020 standard M5 F90 (600 hp) and 2019-2020 M5 Competition F90 (617 hp).

Are the heat vents actually functional?
Yes. Open louvers extract hot air from the engine bay into the wheel arches. They help engine thermal management during long track sessions.

Are OEM side marker lights compatible?
Yes. The fender includes the OEM side marker housing cutout; the original marker transfers over.

Is this the same as the BMW M5 F10?
No. M5 F10 (2011-2017) is the previous generation with completely different body panels.

Does it fit BMW M3 F80 / M4 F82?
No. M3 F80 and M4 F82 have different chassis and fender geometry.

Shipping time?
In-stock items ship within 1-3 business days via partner couriers. International shipping available. Parts sourced to order are delivered within 30 days of the order date at the latest.

Warranty?
Manufacturing defects are covered by a 24-month BYC warranty, in addition to your legal rights.

Why BYC Performance?

BYC Performance is a Turkey-based performance tuning specialist sourcing premium carbon fiber parts from leading manufacturers around the world and supplying them to the Turkish market. Our catalog includes BMW M5 carbon parts, BMW M3 carbon diffusers, Audi RS carbon hoods, Porsche carbon spoilers, and many more high-quality carbon components.