Audi R8 Gen 2 (2015-2018) Prepreg Dry Carbon Fiber V Rear Diffuser

Engineered for Audi R8 Gen 2 (2015-2018) owners who demand racing-grade quality, this Prepreg Dry Carbon Fiber V Rear Diffuser transforms the rear of your supercar with track-grade aggression while delivering measurable aerodynamic gains. Manufactured in Europe to factory-spec mounting tolerances and quality-controlled by BYC Performance, this Audi R8 carbon rear diffuser bolts directly to OEM mounting points — no cutting, no drilling, no modification required.

If you're building a serious Audi R8 tuning project and need a part that exceeds the factory plastic diffuser in both performance and finish, this dry carbon rear diffuser is built for you. Autoclave-cured prepreg carbon fiber is noticeably lighter than wet-lay carbon parts, with far superior structural integrity, and outstanding long-term UV resistance. Engineered to match the LMS racing DNA of the Gen 2 R8's 5.2L V10 FSI naturally-aspirated engine (V10 540 hp, V10 Plus 610 hp), this aggressive "V" geometry diffuser is the ideal aesthetic and functional upgrade for both track and street 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 more consistent weave.
• "V" Geometry Design: Aggressive V-shaped diffuser channels inspired by the R8 LMS race car. Noticeably lighter than the factory plastic part.
• Race-Grade Strength: Carbon fiber offers very high strength for its weight. Resists stone chips and light contact.
• Aerodynamic Performance: Optimized diffuser channels accelerate underbody airflow and generate downforce at high speeds.
• 2x2 Twill Carbon Weave: Authentic carbon fiber pattern under a high-gloss UV-protective clear coat.
• Direct OEM Fit: Plug & play installation on factory Audi R8 Gen 2 (2015-2018) 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 stronger
• The production method widely chosen in motorsport
• Minimal UV fading over years of use

Vehicle Fitment

This Audi R8 diffuser fits the following models perfectly:

• Audi R8 Coupé Gen 2 (2015, 2016, 2017, 2018) — V10 5.2L FSI (540 hp)
• Audi R8 V10 Plus Gen 2 (2015, 2016, 2017, 2018) — V10 5.2L (610 hp)
• Audi R8 Spyder Gen 2 (2015-2018) — V10 5.2L FSI
• Audi R8 V10 Plus Spyder Gen 2 (2017-2018)

Important notes:

• This product is NOT compatible with the previous-generation Audi R8 Gen 1 (2006-2015). Gen 1 and Gen 2 have different rear bumper geometry; a separate Gen 1 carbon diffuser is available in our catalog.
• This product is NOT compatible with the Audi R8 Gen 2 Facelift (2018-2024). The 2019 facelift changed the rear bumper geometry; a separate Gen 2 Facelift diffuser is available.

Technical Specifications

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

Installation Notes

Installing the Audi R8 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 (R8 Gen 2 dual oval outlets).

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 Audi R8 Gen 1 (2006-2015)?
No. The R8 Gen 1 and Gen 2 have different chassis and rear bumper geometry. A separate Gen 1 carbon diffuser is available in our catalog.

Does this fit the Gen 2 Facelift (2018-2024)?
No. The 2019 facelift changed the rear bumper and diffuser geometry. A separate Gen 2 Facelift carbon diffuser is available in our catalog.

Difference between R8 V10 and V10 Plus?
No fitment difference. This diffuser fits both V10 standard (540 hp) and V10 Plus (610 hp) — both trims share the same rear bumper geometry. The Spyder convertible also uses the same diffuser.

Compatible with Audi R8 Spyder (Convertible)?
Yes — Audi R8 Spyder Gen 2 (2015-2018) is fully compatible. Coupé and Spyder share identical rear diffuser mounting points.

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. International shipping available.

Warranty?
BYC Performance offers a 12-month warranty on this product.

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 Audi R8 carbon parts, Audi RS carbon diffusers, BMW M3 carbon diffusers, Porsche carbon spoilers, and many more high-quality carbon components. BYC sources its parts from leading European manufacturers, and every item undergoes strict quality control.