Carbon Fiber Rear Bumper Diffuser for Audi 08-12 R8 V8 4.2L - Coupe & Spyder
Carbon Fiber Rear Bumper Diffuser for Audi 08-12 R8 V8 4.2L - Coupe & Spyder - Image 2
Carbon Fiber Rear Bumper Diffuser for Audi 08-12 R8 V8 4.2L - Coupe & Spyder - Image 3
Carbon Fiber Rear Bumper Diffuser for Audi 08-12 R8 V8 4.2L - Coupe & Spyder - Image 4
Carbon Fiber Rear Bumper Diffuser for Audi 08-12 R8 V8 4.2L - Coupe & Spyder - Image 5
Carbon Fiber Rear Bumper Diffuser for Audi 08-12 R8 V8 4.2L - Coupe & Spyder - Image 6

Carbon Fiber Rear Bumper Diffuser for Audi 08-12 R8 V8 4.2L – Coupe & Spyder

Rated 4.94 out of 5 based on 16 customer ratings
(16 Reviews)

Original price was: $3,300.00.Current price is: $2,100.00.

Part(s) Fitment:

  • Make: for Audi
  • Model: for R8 V8
  • Year(s): 2008-2012
  • **Fits Only: Rear bumpers as shown in the product images.
  • **Will NOT Fit: Audi R8 V10 models.

Part(s) Features:

  • ✔ Real Carbon Fiber – 2×2 3K Twill Weave with a Glossy Finish.
  • ✔ Direct Replacement – Designed as a factory replacement part.
  • ✔ UV & Element-Resistant Coating – Protects against fading and discoloration.
  • ✔ Easy Maintenance – Simple to clean using everyday cleaning methods.
  • ✔ Quick & Hassle-Free Installation – No modifications required.
  • ✔ Distinctive Styling Upgrade – Enhances aesthetics with an aggressive, high-performance look.
  • ✔ Limited Warranty: 1 Year (365 days).

Note: Please compare your vehicle’s existing parts with the Scopione images before purchasing.

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SKU: SC-AU-R8-V8-DIFF-MH5 Categories: , Tags: ,
Carbon Fiber2x2 3K Twill WeaveDirect ReplacementNo Hardware Included12 Months Limited Warranty

Carbon Fiber Replacement Rear Bumper Diffuser Valance by Scopione for 2008-2012 Audi R8 V8 4.2L – Coupe & Spyder Convertible

Enhance the aerodynamic performance and aggressive styling of your Audi R8 V8 4.2L Coupe or Spyder (2008-2012) with this premium carbon fiber rear bumper diffuser. Designed for track-inspired performance and street appeal, this lightweight, high-quality upgrade offers improved airflow, increased downforce, and an ultra-sleek look that complements the R8’s exotic design.

Key Features:

✅ Precision Fit & Premium Quality – Crafted from 2×2 weave carbon fiber, this diffuser is engineered to match OEM specifications, ensuring a seamless fit and effortless installation.

✅ Enhanced Aerodynamics & Stability – By reducing drag and increasing downforce, this performance rear diffuser helps optimize airflow under the car, improving high-speed stability and handling.

✅ Lightweight & Durable Construction – Made from lightweight carbon fiber, this aftermarket R8 rear diffuser not only enhances performance efficiency but also ensures long-lasting durability against harsh road conditions.

✅ Aggressive Aesthetic Upgrade – Give your Audi R8 a supercar-inspired look with this sleek carbon fiber rear diffuser, adding a bold, race-ready appearance that turns heads.

✅ Easy Installation & Perfect Compatibility – Designed for a direct bolt-on replacement, this R8 carbon fiber rear diffuser seamlessly integrates with the factory rear bumper, requiring minimal modifications.

Why Choose Scopione’s Carbon Fiber Rear Bumper Diffuser?

Whether you’re looking to enhance aerodynamics, boost performance, or simply customize your Audi R8 with premium carbon fiber parts, this rear bumper diffuser is the perfect upgrade. Ideal for R8 owners who demand both function and style, this diffuser delivers an authentic motorsport-inspired look while improving driving dynamics.

Compatible With:

✔ Audi R8 V8 4.2L (Type 42) Coupe: 2008, 2009, 2010, 2011, 2012
✔ Audi R8 V8 4.2L (Type 42) Spyder / Convertible: 2011, 2012
❌ Will NOT Fit: V10 Models

Installation:

  • Each part is handcrafted to replace the factory diffuser.
  • No modifications required – designed for a direct fit.
  • Professional installation is recommended for optimal results.
  • Custom-designed specifically for your make and model.
  • Securely fastens using factory placeholders and clips.

Scopione Package Contents:

✔ (1) Packaging Box
✔ (1) Carbon Fiber Rear Bumper Diffuser (Replacement Part)
❌ Installation manual, tools, or hardware are NOT included.

Order Yours Audi R8 Today!

Transform the rear-end aesthetics and aerodynamics of your Audi R8 4.2L with this high-performance carbon fiber rear diffuser. Perfect for track-day enthusiasts, car show competitors, and R8 owners who want the best in aftermarket customization.

Additional Information:

Note: If, at any time, you decide to remove the Scopione part(s), the process is fully reversible.

Interchange Part Numbers for RHD and LHD models: 420807521A | 420807521A3FZ

Installation guidance for Scopione replacement and add-on parts. For best results, test-fit before any paintwork, drilling, trimming, or permanent installation. If you would like us to confirm compatibility or your installation approach before you begin, contact us with clear photos of your OEM part and any relevant options.

Quick install overview
  • Unbox & inspect: confirm the part, finish, and contents before starting. Keep all packaging until installation is complete.
  • Dry test-fit first: verify alignment, gaps, and clearance before any drilling, trimming, paintwork, or permanent mounting.
  • Replacement parts: typically use OEM mounting points and may reuse factory hardware—tighten evenly and avoid over-torquing carbon.
  • Add-on parts: may install with 3M VHB tape, brackets, or light trimming depending on your setup and existing modifications.
  • Protect the finish: use clean microfiber towels and masking tape on edges while positioning and aligning.
  • Professional installation recommended: especially for aero components and precision-fit parts.
Before you start

Work on a clean, well-lit surface. Confirm left/right orientation, compare the part to your OEM component, and verify that mounting points and edges align during a dry-fit. If your vehicle has aftermarket bumpers/diffusers, previous repairs, or custom bodywork, fitment may vary—do not force alignment before checking the install position.

Dry-fit & alignment tips

Position the part gently and never force it into place. If fasteners are used, hand-start them first, then check gaps, edge alignment, and clearance before tightening evenly. Use low-tack tape to mark reference points so you can repeat the exact placement after cleaning or adhesive preparation.

Adhesive installs (3M tape)

Prep is everything. Clean both surfaces with isopropyl alcohol, make sure they are fully dry, and install in a warm environment whenever possible. Apply firm, even pressure along the entire tape line to ensure full contact. For best adhesion, avoid washing or rain exposure immediately after installation and allow adequate cure time before heavy use.

Fastener installs (bolts/screws/clips)

Hand-start all fasteners to prevent cross-threading, then tighten gradually and evenly to keep the part aligned. Do not over-tighten—carbon fiber can crack from excessive point load. When possible, follow OEM torque guidance for that mounting location and use washers/spacers as appropriate to distribute pressure.

Installation details
  • Details: Installation specifics depend on the part. Review the Part Details and Features tabs for guidance, or contact us for confirmation before you begin.
Suggested tools & supplies

In most cases you’ll want basic hand tools, trim tools, clean microfiber towels, isopropyl alcohol, and masking tape. If using 3M tape, gentle warming (heat gun on low or a warm environment) helps improve initial adhesion. Exact tools and supplies vary by part and vehicle setup.

Important note on modifications

Only drill, trim, or perform paintwork after a successful dry test-fit and confirmed alignment. If anything looks off, stop before making permanent changes and contact us—we’ll help you verify the correct placement and approach.

After-install checklist

Verify clearance and movement (full steering lock where applicable), confirm there is no contact with heat sources, and ensure all edges are seated securely. If installed with fasteners, re-check alignment and tightness after initial use to account for settling and vibration.

Care & maintenance

Cleaning: Use a pH-neutral car shampoo and clean microfiber towels.

Avoid: harsh solvents (acetone, brake cleaner), abrasive pads, aggressive cutting compounds, and pressure-washing directly at edges/seams.

Protection: Treat the finish like painted bodywork. A quality sealant or ceramic coating may be used if compatible with your detailer’s process.

For long-term gloss and UV protection, many owners choose a quality sealant or ceramic coating applied by a professional detailer. If you want recommendations for safe products for your finish or climate, contact us and we’ll help.

If something doesn’t line up

Stop before forcing, drilling, trimming, or making any permanent changes. Misalignment is often caused by aftermarket bumpers/diffusers, prior repairs/bodywork, or positioning during the dry-fit. Send clear photos of the mounting points, the surrounding area, and a wider shot of the overall fitment, and we’ll help you troubleshoot the correct placement and next step.

Need tracking or delivery help?

You can view shipment updates on our Order Tracking page. If you need assistance, contact us with your order number and (if applicable) photos of the box/label, and we’ll help resolve it quickly.

Need help before installing? Contact us
with clear photos of your OEM part and we’ll guide you.

Quick answers on fitment, finish, shipping, and warranty. If you’re unsure about compatibility, message us with clear photos of your OEM part (and any relevant options) and we’ll help confirm fitment.

Will this fit my vehicle?

Start with the Compatibility tab on this page. Fitment can vary by factory options, model-year changes, and aftermarket bumpers/diffusers. If you’d like a quick confirmation before ordering, send clear photos of your OEM part (and any relevant options) and we’ll help verify compatibility.

What warranty do you offer?

Most products include a 6–12 month limited warranty against manufacturing defects (coverage varies by item). To protect coverage, please test-fit before any cutting, drilling, paintwork, or permanent installation. Warranty does not cover damage caused by improper installation, accidents/impact, road debris, or harsh chemicals/cleaners.

Do your carbon-fiber parts look exactly like the photos?

Carbon fiber is hand-laid, so subtle variations in weave direction, pattern alignment, and gloss can occur—this is normal and part of the material’s character. Every piece is inspected for finish quality before it ships.

Is installation hardware included?

Hardware inclusion varies by product. If hardware is not listed in the product details, the part is typically designed to reuse OEM mounting points and factory fasteners. For best results—and to protect the finish—professional installation is recommended.

Do parts come painted, and can I paint carbon fiber?

Most carbon-fiber parts arrive with a clear-coated finish unless otherwise stated. You can leave the carbon exposed, wrap it, or paint it for a matched look. For best results, test-fit before any paintwork and follow your installer/body shop’s prep process for proper adhesion.

When will my order ship and how do I track it?

In-stock items typically ship within 2–3 business days. If an item is made-to-order or temporarily out of stock, we’ll contact you with the expected lead time. Once your order ships, tracking is emailed automatically and you can also check updates on our Order Tracking page.

How are parts packaged, and what if there is shipping damage?

Every part is carefully packed to protect the finish in transit and shipped in a plain outer carton. Please inspect your delivery upon arrival. If anything looks damaged or missing, take clear photos of the outer box, shipping label, packing materials, and the item, then contact us within 48 hours so we can resolve it as quickly as possible.

Do you ship internationally?

Yes, we ship internationally. Available shipping options and rates are shown at checkout based on your destination and package size. Import duties, taxes, and any broker/clearance fees (if applicable) are determined by your country and are the buyer’s responsibility.

Can I cancel or change my order after purchase?

If you need to change or cancel an order, please contact us as soon as possible. If the order has not shipped, we’ll do our best to accommodate your request. Once an order is in processing or has shipped, changes may be limited.

How do I care for carbon fiber?

Treat carbon fiber like painted bodywork: wash with a pH-neutral car shampoo, rinse thoroughly, and dry with clean microfiber towels. Avoid harsh solvents, abrasive pads, and aggressive cutting compounds. If you’re unsure what’s safe for your finish or climate (UV/heat), message us and we’ll advise.

Please Note: Products sold by Scopione are intended for lawful use only. Scopione is not affiliated with or endorsed by any vehicle manufacturer.
All logos, names, and images shown are used for nominative and informational purposes.

Still have questions? Contact us

16 reviews for Carbon Fiber Rear Bumper Diffuser for Audi 08-12 R8 V8 4.2L – Coupe & Spyder

  1. Rated 5 out of 5

    Michael I. –

    Perfect Fit and Great Quality! I was a bit hesitant about aftermarket parts, but this carbon fiber rear diffuser exceeded my expectations. The fitment was spot on for my 2009 Audi R8 V8, and the quality of the weave is flawless. The gloss finish looks absolutely stunning, and the installation was straightforward. Highly recommend for anyone looking to add an aggressive look to their R8!

  2. Rated 5 out of 5

    Daniel S. –

    Transformed My R8’s Rear End! This diffuser gave my 2011 Audi R8 Spyder a whole new level of sporty elegance. The carbon fiber is lightweight and durable, and it fits just like OEM. The aggressive styling makes my car stand out, and I constantly get compliments. Scopione’s customer service was great as well.

  3. Rated 5 out of 5

    James G. –

    I was looking for a high-quality carbon fiber diffuser, and this one from Scopione delivers! The weave is uniform, the clear coat is perfect, and it installed without any issues. It really enhances the aerodynamics and appearance of my 2012 R8 V8. Highly recommended for anyone who loves performance and aesthetics. Premium Carbon Fiber, Worth Every Penny.

  4. Rated 5 out of 5

    Alex V. –

    Easy Install, Excellent Upgrade. I wanted to add a more aggressive look to my 2012 R8 V8 Coupe, and this diffuser was exactly what I needed. Installation was easy, and the pre-drilled mounting points aligned perfectly. It feels sturdy, well-made, and adds a noticeable presence to the rear. A must-have mod!

  5. Rated 5 out of 5

    David R. –

    A Must-Have for R8 Owners! If you own an 08-12 Audi R8 V8, this diffuser is a game-changer. The carbon fiber finish is flawless, and the aerodynamic design makes my car look even more track-ready. I was worried about the fitment, but it installed easily without any adjustments. Definitely worth it!

  6. Rated 5 out of 5

    Chris R. –

    High-End Look Without the High Price! Compared to other brands, Scopione offers premium quality at a reasonable price. This Audi R8 carbon fiber diffuser is well-crafted, lightweight, and makes my R8 stand out from the crowd. The high-gloss finish enhances the car’s aesthetic, and I love the aggressive look.

  7. Rated 5 out of 5

    Andrew J. –

    Flawless Finish, Enhanced Performance! Not only does this diffuser look incredible, but I also noticed a slight improvement in airflow while driving at high speeds. The fit and finish are top-notch, and it truly elevates the overall look of my 2011 Audi R8 Spyder. One of the best upgrades I’ve made!

  8. Rated 5 out of 5

    Ryan H. –

    Perfect for Carbon Fiber Enthusiasts. I already have several carbon fiber upgrades on my type 42 R8 V8, and this diffuser was the missing piece. It matches perfectly with other CF parts, and the quality is exceptional. If you’re a carbon fiber enthusiast, this is a no-brainer!

  9. Rated 5 out of 5

    John C. –

    Looks Like a Supercar Now! After installing this Scopione carbon fiber rear diffuser, my 2010 R8 V8 Coupe looks even more exotic. The quality is OEM-level, and it gives the rear end a meaner, more aggressive stance. I highly recommend this to anyone wanting to upgrade their R8’s aesthetics and aerodynamics.

  10. Rated 4 out of 5

    Mark P. –

    Great Quality, But Took Some Adjustments. The carbon fiber finish and build quality are top-notch, and it definitely gives my 2009 Audi R8 V8 4.2L Coupe a more aggressive look. However, I had to make some minor adjustments during installation to get the perfect fit. It wasn’t a deal breaker, but I expected a more seamless installation for the price. That said, once installed, it looks fantastic and really enhances the rear end of the car. Would recommend, just be prepared for a bit of tweaking if needed.

  11. Rated 5 out of 5

    Jason K. –

    Absolutely Transforms the R8 – A Must-Have Upgrade!

    I’ve been modifying my 2009 Audi R8 V8 Coupe for a while now, and this carbon fiber rear bumper diffuser from Scopione is easily one of the best upgrades I’ve done. From the moment I unboxed it, I could tell the quality was exceptional—the carbon fiber weave is flawless, the clear coat has a deep gloss, and it just screams premium craftsmanship.

    Fitment & Installation:
    I was initially concerned about fitment since some aftermarket carbon fiber parts require adjustments, but this diffuser fit perfectly right out of the box. The pre-drilled mounting points aligned precisely with the stock locations, making installation quick and hassle-free. I installed it myself in about an hour with basic tools, and I didn’t have to make any modifications.

    Appearance & Aesthetic Impact:
    Once installed, the transformation was incredible. The diffuser adds a more aggressive, track-inspired look to the rear end while maintaining a sleek and OEM-like finish. It complements the R8’s natural curves perfectly, and I’ve already gotten multiple compliments at car meets. The glossy carbon fiber finish also matches my other CF components, which really ties everything together.

    Performance & Functionality:
    Beyond aesthetics, I noticed a slight improvement in rear-end stability at higher speeds, likely due to the diffuser’s aerodynamic design. While it’s not a massive performance boost, every bit helps when you’re pushing the car to its limits. Plus, the lightweight nature of carbon fiber means I’m shaving off unnecessary weight.

    Final Thoughts:
    If you own an 08-12 Audi R8 V8 Coupe or Spyder, this carbon fiber rear diffuser is a must-have upgrade. The quality, fitment, and overall impact are worth every penny, and it truly gives the R8 a more exotic, supercar-like presence. Scopione nailed it with this product, and I’d highly recommend it to anyone looking to elevate their R8’s rear-end styling and aerodynamics.

    Pros:
    – Perfect fitment – No modifications needed
    – Premium-quality carbon fiber – Uniform weave & deep gloss finish
    – Easy installation – Pre-drilled holes & proper alignment
    – Aggressive yet elegant styling – Transforms the rear end
    – Lightweight & aerodynamic – Slight performance improvement

    Cons:
    – None – Just be ready for some jealous looks!

  12. Rated 5 out of 5

    James R. –

    Game-Changer for My Audi R8 V8!

    I recently upgraded my 2009 Audi R8 V8 Coupe with this carbon fiber rear diffuser, and the difference is night and day! The fitment is perfect, installation was straightforward, and the aggressive styling gives my R8 a true supercar look. The aerodynamic design noticeably improves high-speed stability, making this a must-have performance upgrade. Highly recommend for any Audi R8 4.2L owner looking to enhance both style and function.

  13. Rated 5 out of 5

    Marco L. –

    Top-Tier Quality & Lightweight Carbon Fiber!

    This is hands down the best aftermarket rear diffuser I’ve installed on my 2010 R8 Spyder. The premium-grade carbon fiber has a flawless glossy finish that perfectly complements my factory bodywork. Not only does it look stunning, but it’s also lightweight and durable, contributing to better aerodynamics and handling. Whether you’re into track performance or just want a sleek, customized R8 look, this is a no-brainer!

  14. Rated 5 out of 5

    Dylan S. –

    Instant Upgrade – Looks Like a Supercar Now!

    If you own a 2008-2012 Audi R8 V8, this carbon fiber rear bumper diffuser is the perfect upgrade to modernize your ride. I was amazed at how well it aligns with the OEM mounting points—no modifications needed! The racing-inspired design gives my R8 an aggressive stance, and the real carbon fiber construction ensures it’s both lightweight and durable. Plus, I’ve noticed improved downforce and stability at high speeds. A premium mod that’s worth every penny!

  15. Rated 5 out of 5

    Nathan K. –

    Perfect Fit, Easy Install, and Ultimate Style!

    I was looking for a high-quality rear diffuser for my Audi R8 V8 4.2L Coupe and found this gem. The precision-engineered carbon fiber design fits like a glove, and installation took less than an hour with basic tools. It instantly makes my R8 look more sporty and aggressive, just like the R8 GT models. If you’re considering a carbon fiber body kit upgrade, this diffuser is a fantastic starting point.

  16. Rated 5 out of 5

    Eric M. –

    Worth Every Dollar – Performance & Aesthetics Combined!

    I’ve tested a few aero parts for the Audi R8, but this Scopione carbon fiber diffuser stands out. It not only enhances the visual appeal of my 2012 R8 V8, but it also provides noticeable performance benefits. The rear-end airflow is much smoother, helping with stability and cornering performance. If you want a functional and stylish carbon fiber upgrade for your Audi R8 4.2L Coupe or Spyder, don’t hesitate—this is the one to get!

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Scopione is designed for enthusiasts who expect precise fitment, a high-quality finish, and a premium buying experience. Here is what you can count on when you choose Scopione carbon-fiber products.

Fitment confidence
  • Compatibility-first: start with the Compatibility tab for the most accurate fitment notes.
  • Pre-purchase support: if anything is unclear, send clear photos of your OEM part and we’ll help verify compatibility.
  • Installer-friendly process: we recommend a dry test-fit before any paintwork or permanent modifications.
Premium finish standards

Carbon fiber is hand-laid, so subtle variations in weave direction, pattern alignment, and gloss can occur—this is normal and part of the material. Every piece is inspected for overall finish quality before it ships.

Premium ownership experience
  • Protected shipping: parts are carefully packed to help protect the finish in transit and shipped in a plain outer carton.
  • Fast resolution: if anything arrives damaged or missing, contact us within 48 hours with clear photos and we’ll assist promptly.
  • Warranty clarity: most products include a 6–12 month limited warranty against manufacturing defects (coverage varies by item).
Care & maintenance guidance

We provide clear care guidance so your carbon fiber stays looking its best: wash with a pH-neutral car shampoo, dry with clean microfiber towels, and avoid harsh solvents or abrasive pads.

Please Note: Products sold by Scopione are intended for lawful use only. Scopione is not affiliated with or endorsed by any vehicle manufacturer.
All logos, names, and images shown are used for nominative and informational purposes.

Still have questions? Contact us
Weight 10 lbs
Dimensions 60 × 35 × 15 in
Condition

New
Surface Finish

Glossy Black
Condition New

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