BMW M2 F87 Prepreg Dry Carbon Fiber KS Rear Diffuser

Engineered in KS spec for BMW M2 F87 owners chasing aggressive race-track aesthetics, this Prepreg Dry Carbon Fiber Rear Diffuser transforms the underside of the rear bumper while accelerating underbody airflow. Manufactured in Europe and quality-controlled by BYC Performance, this BMW M2 F87 KS carbon diffuser bolts directly to OEM mounting points — no cutting, no drilling, no modification required.

If your BMW M2 F87 tuning project needs more visual aggression than the MP variant offers, this KS dry carbon rear diffuser features more pronounced strakes and fins. It complements both the N55-powered M2 Coupé (370 hp) and the S55-powered M2 Competition / CS (410-444 hp), and is noticeably lighter than wet-lay carbon alternatives.

Key Features

• KS Aggressive Fins: More pronounced strake/fin geometry vs. the MP variant; emphasizes track styling.
• Prepreg Dry Carbon Technology: Autoclave-cured under high heat and pressure, with a more consistent weave.
• Aerodynamic Performance: Optimized diffuser channels accelerate underbody airflow and generate downforce at speed.
• Noticeably Lighter: Noticeably lighter than the factory plastic part.
• 2x2 Twill Carbon Weave: Authentic carbon pattern under a high-gloss UV-protective clear coat.
• Direct OEM Fit: Plug & play installation on factory M2 F87 mounting points.
• 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 more consistent structure
• The production method widely chosen in motorsport
• Minimal UV fading over years of use

Vehicle Fitment

This BMW M2 F87 KS diffuser fits the following models perfectly:

• BMW M2 Coupé F87 (2016, 2017, 2018) — N55 engine (~370 hp)
• BMW M2 Competition F87 (2018, 2019, 2020, 2021) — S55 engine (~410 hp)
• BMW M2 CS F87 (2020, 2021 — limited edition) — S55 engine (~444 hp)

NOTE: This diffuser is NOT compatible with the new-generation BMW M2 G87 (2023+). G87 has different rear bumper geometry.

Technical Specifications

• Material: Prepreg Carbon Fiber (2x2 Twill Weave)
• Manufacturing: Autoclave Cure
• Finish: High-Gloss Clear UV-Protective Resin
• Color: Natural carbon weave black
• Style: KS-spec aggressive fins/strakes
• Origin: Europe

Installation Notes

Installing the BMW M2 F87 carbon diffuser is a direct replacement of the factory part. Professional installation is recommended:

1. Raise the vehicle and remove rear bumper underbody screws.
2. Detach the OEM plastic diffuser from clips and bolts.
3. Test-fit the carbon diffuser for alignment.
4. Secure with supplied hardware to the manufacturer's recommended torque.
5. Verify exhaust tips are centered in diffuser cutouts.

Care & Maintenance

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

FAQ

How does the KS differ from the MP variant?
The KS variant features more pronounced, more aggressive strake/fin geometry. The MP version offers a more refined look.

Does this fit the BMW M2 G87 (2023+)?
No. F87 and G87 have different chassis codes and rear bumper geometry.

Compatible with both M2 base (N55) and M2 Competition (S55)?
Yes. This diffuser fits all F87 variants (N55 Coupé, S55 Competition, S55 CS).

Will rain damage dry carbon parts?
No. Autoclave-cured prepreg carbon is fully waterproof and weather-resistant.

Shipping time?
In-stock items ship within 1-3 business days via partner couriers. International shipping available.

Warranty?
BYC Performance offers a 12-month manufacturer warranty.

Why BYC Performance?

BYC Performance is a Turkey-based performance tuning specialist sourcing premium carbon fiber parts from leading European manufacturers and supplying them to the Turkish market. Our catalog includes BMW M2 carbon parts, BMW M3 carbon diffusers, Audi RS carbon hoods, Porsche carbon spoilers, and many more high-quality carbon components.