Audi S4 / A4 B9.5 | Prepreg Dry Carbon Fiber Fog Light Surround

Audi S4/A4 B9.5 (2019-2023) Prepreg Dry Carbon Fiber Fog Light Surround

Designed for Audi S4/A4 B9.5 (facelift, 2019-2023) owners, this Prepreg Dry Carbon Fiber Fog Light Surround set wraps the lower front bumper corners and adds a subtle RS-style accent to your sport sedan or Avant. Imported from leading manufacturers around the world and quality-controlled by BYC Performance, this Audi B9.5 carbon fog light surround set bolts directly to OEM mounting points, no cutting, drilling, or modification required.

If you're working on an Audi S4 B9.5 tuning or A4 B9.5 modifying project and want to upgrade the small but impactful front-bumper details, this dry carbon fog light surround set is for you. Autoclave-cured prepreg carbon is noticeably lighter than wet-lay parts, with superior structural integrity and outstanding UV resistance. The carbon weave complements the S4 B9.5's 3.0 TFSI V6 single-turbo (349 hp) sport-sedan character with a stand-out detail across the front fascia.

Key Features

• Prepreg Dry Carbon Technology: Pre-impregnated plies cured in an autoclave under high heat and pressure for a more consistent weave.
• RS-Style Detail: Carbon trim around the factory fog light area, noticeably lighter than the factory plastic part.
• Race-Grade Strength: Carbon fiber offers very high strength for its weight.
• 2x2 Twill Carbon Weave: Authentic carbon pattern under a high-gloss UV-protective clear coat.
• Direct OEM Fit: Plug & play on Audi A4 / S4 B9.5 facelift front-bumper fog light areas.
• Pair Set: Left + right surrounds supplied as a symmetric pair.
• UV & Chemical Protection: Clear coat resists fading, cracking, bug splat, and road tar.

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

Most aftermarket carbon parts are made using wet lay-up, with resin applied by hand and cured at room temperature. Prepreg dry carbon:

• Autoclave-cured 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

Installation uses pre-applied 3M adhesive backing and existing OEM clip points.

1. Clean the fog light area with isopropyl alcohol and let dry.
2. Remove the backing from the 3M adhesive tape.
3. Test-fit the surround around the fog light for alignment.
4. Press firmly into position to bond.
5. Avoid washing the car for 24 hours to allow the adhesive to set fully.

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 B9 pre-facelift (2015-2019)?
No. The B9 pre-facelift front bumper and fog light area have entirely different geometry. A separate B9 pre-facelift version is required.

Compatible with RS4 Avant?
No. The RS4 B9/B9.5 factory front bumper has a different design; this set is for A4 and S4 bumpers.

Compatible with A4 Avant (wagon)?
Yes. A4 Sedan and Avant share the same front bumper; both body styles are fully compatible.

Compatible with previous-generation B8/B8.5?
No. B8/B8.5 (2008-2015) is an entirely different platform.

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. 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 Audi B9 carbon parts, Audi RS carbon diffusers, BMW M3 carbon spoilers, Porsche carbon mirror caps, and many more high-quality carbon components. All parts are sourced from leading manufacturers around the world and undergo strict quality control.