BMW M5 F90 | Prepreg Dry Carbon Fiber Lip Spoiler

BMW M5 F90 Prepreg Dry Carbon Fiber Lip Spoiler

Engineered for BMW M5 F90 owners who want a subtle but unmistakable aero detail and a premium carbon touch on the trunk lid, this Prepreg (Dry) Carbon Fiber Lip Spoiler follows the factory trunk contour exactly with no cutting or drilling required. Imported from leading manufacturers around the world and quality-controlled by BYC Performance, this BMW M5 F90 carbon trunk spoiler is the cleanest way to add real M Performance presence to the rear of your sedan.

If you're building a serious BMW M5 F90 tuning project and want a visible M Performance detail without altering the factory line, this dry carbon lip spoiler is built for you. Autoclave-cured prepreg carbon fiber is noticeably lighter than wet-lay carbon parts, offers very high strength for its weight, and delivers outstanding long-term UV resistance. Engineered to match the S63B44T4-powered F90 M5, 600 hp standard and 617 hp Competition, it visually emphasizes the speed character of the sedan.

Key Features

• Prepreg (Dry) Carbon Technology: Pre-impregnated carbon plies cured in an autoclave under high heat and pressure ensure a consistent weave.
• Subtle Aero Profile: M Performance lip spoiler shape; adds a small upward kick at the trunk lid trailing edge and reduces rear axle lift at high speed.
• Low Weight: A small part that still delivers a worthwhile weight saving; places no meaningful load on trunk hinges or struts.
• Race-Grade Strength: Carbon fiber offers very high strength for its weight. Resists airflow pressure and light contact.
• 2x2 Twill Carbon Weave: Authentic carbon fiber pattern under a high-gloss UV-protective clear coat.
• Adhesive Installation: 3M VHB double-sided tape and OEM contour match, no drilling needed.
• UV & Chemical Protection: Long-life clear coat protects against fading, cracking, fuel splash, and road tar.

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 lip spoiler is fully adhesive: no drilling or permanent modification:

1. Clean and degrease the trunk lid surface with isopropyl alcohol.
2. Test-fit the spoiler before peeling the 3M VHB tape backing; mark the position lightly.
3. Bring the trunk lid surface to at least 20°C (gently warm with a heat gun if necessary).
4. Peel the VHB tape release liner and press the spoiler firmly into place.
5. Do not wash the car or slam the trunk for the first 24 hours to allow full adhesion.

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 and avoid spraying directly along the adhesive edge.

FAQ

Does this fit the F90 LCI (2021+)?
No. The F90 LCI facelift changed the trunk lid contour. M5 F90 LCI owners should contact BYC for lip-spoiler availability.

Compatible with both standard M5 and M5 Competition?
Yes. This lip spoiler fits both 2018-2020 standard M5 F90 (600 hp) and 2019-2020 M5 Competition F90 (617 hp): trunk lid geometry is identical across pre-LCI F90 trims.

Do I need to drill holes?
No. The lip spoiler installs with 3M VHB industrial double-sided tape: no drilling or permanent modification to the trunk lid.

Is this the same as the BMW M5 F10?
No. M5 F10 (2011-2017) is the previous generation with a different trunk lid. A separate carbon lip spoiler for the F10 is available in our catalog.

Does it fit BMW M3 F80 / M4 F82?
No. M3 F80 and M4 F82 have different chassis and trunk lid geometry. Separate F-series M3/M4 carbon lip spoilers are available in our catalog.

Will rain damage dry carbon parts?
No. Autoclave-cured prepreg carbon is fully waterproof. 3M VHB tape is automotive-grade and rated for rain, heat, and UV exposure.

Shipping time?
In-stock items ship within 1-3 business days. 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. All products undergo strict quality control.