Audi B9 A4 S Line KB Style Carbon Fiber Front Bumper Splitters

Audi B9 A4 S Line KB Style Carbon Fiber Front Bumper Splitters

$279.99
Skip to product information
Audi B9 A4 S Line KB Style Carbon Fiber Front Bumper Splitters
  • Audi B9 A4 S Line KB Style Carbon Fiber Front Bumper Splitters
  • Audi B9 A4 S Line KB Style Carbon Fiber Front Bumper Splitters
  • Audi B9 A4 S Line KB Style Carbon Fiber Front Bumper Splitters
Audi B9 A4 S Line KB Style Carbon Fiber Front Bumper Splitters
Aurenzio

Audi B9 A4 S Line KB Style Carbon Fiber Front Bumper Splitters

★★★★★ 500+ reviews

Can’t find what you’re looking for?

Contact us and our team will be happy to help.

$279.99
Shipping calculated at checkout.
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Aurenzio KB Style Carbon Fiber Front Bumper Splitters

Fitment: Audi B9 A4 S Line (2017–2023)

🔹 Key Features

🏁 Aggressive KB Style Design

  • Adds a sharp, dynamic edge to your Audi’s front end for a more assertive, performance-inspired look.

  • Designed specifically for the B9 A4 S Line to integrate seamlessly with the OEM front bumper.

💎 Genuine Carbon Fiber Construction

  • Crafted from premium-grade carbon fiber for maximum strength and minimal weight.

  • Visible carbon weave enhances the vehicle's appearance with a sleek, high-end finish.

🌬️ Aerodynamic Performance

  • Enhances front-end downforce by managing airflow and reducing lift at higher speeds.

  • Contributes to improved high-speed stability and cornering precision.

✨ Gloss Clear Coat Finish

  • Coated with a high-gloss, UV-resistant finish that protects against fading and surface wear.

  • Maintains a deep, luxurious shine over time, preserving the carbon fiber's visual appeal.

🔧 Easy Installation

  • Designed for a precise fit using automotive-grade adhesive or screws (hardware not included).

  • No major modifications required—plug-and-play for experienced installers.

Free Shipping

Financing Available

14-Day Return

Fitment Guaranteed

Shipping & Returns

We aim to get your parts to you as quickly as possible. In-stock items are shipped domestically and typically arrive within 1–5 business days. International orders generally take 7–21 business days to deliver. Once your order is placed, you will receive an email confirmation when it is being processed.

Production and delivery timelines may vary based on order complexity and shipping destination. For additional information, please review our Shipping Policy.

Returns are accepted only for defective products. You have 14 days from the delivery date to inspect your order and report any issues.
Care Guide

Routine Cleaning: Clean carbon fiber parts regularly using a soft cloth and a mild soap-and-water solution. Avoid abrasive materials or harsh cleaners, as they may damage the finish.

Use Microfiber Materials: Always use microfiber pads or cloths when cleaning or applying protective products to help prevent surface scratches.

Protect from Sun and Chemicals: Minimize exposure to direct sunlight and harsh chemicals, which can degrade carbon fiber over time. Whenever possible, use protective covers or park in shaded areas to preserve the material.

WHY ENTHUSIASTS CHOOSE US

At Aurenzio, we deliver precision-crafted automotive parts that enhance both performance and style—supported by expert guidance and a passion for the car community. We don’t just provide parts; we help you bring your vision to life.

  • Perfect Fitment Every Time: Each component is engineered and tested to perfectly match your vehicle’s specifications for a flawless installation.

  • Uncompromising Quality: Made from premium carbon fiber, forged metals, and other high-performance materials, all rigorously tested for durability and performance.

  • Dedicated Customer Support: Our knowledgeable specialists are ready to provide expert advice and personalized assistance.

  • Trusted Worldwide: From daily drivers to show-stopping builds, Aurenzio parts are installed on enthusiast vehicles across the globe.

Best Sellers

View all
BMW F80 M3/F82 M4 CSL Yellow DRL Headlight Module Upgrade

BMW F80 M3/F82 M4 CSL Yellow DRL Headlight Module Upgrade

BMW F80 M3/F82 M4 CSL Yellow DRL Headlight Module Upgrade
$369.99

ABOUT US

Aurenzio is more than just an aftermarket parts supplier—it’s a brand built by enthusiasts, for enthusiasts. We believe every car deserves to reflect the passion of its driver, which is why we focus on delivering premium, precision-engineered parts that bring out the best in performance, style, and individuality.

From carbon fiber aero to performance upgrades, every product we offer is carefully selected and tested to meet the highest standards of quality and fitment. Whether you drive a European icon, a JDM classic, or a modern performance build, our mission is to provide parts that elevate your ride beyond stock and make every drive an experience.

We’re not here to just sell you parts—we’re here to fuel your journey. Whether you’re chasing lap times, improving street presence, or simply enjoying the build process, our team is dedicated to helping you achieve your vision with expert support and guidance every step of the way.

At Aurenzio, we share the same passion you do: cars aren’t just machines—they’re extensions of who we are. That’s why we’re committed to providing products and service that match the pride you put into your ride.

SHOP ALL

FAQ

Are these made from real carbon fiber or just overlays?

All of our products are full carbon fiber. Each product listing specifies the construction material, and we only source high-quality parts that are tested for durability and built to meet or exceed OEM standards.
How long does shipping take and where are orders shipped from?

Shipping times vary by location. U.S. orders typically arrive within 5–7 business days, international orders within 7–16 business days, and made-to-order items may take 1–3 weeks. Full delivery details are provided in your confirmation email. For any questions, reach us at aurenzioservice@gmail.com.
Do I need a professional to install, or can I do it myself?

Many of our parts are designed for simple bolt-on installation and can be done at home with basic tools. For more complex items, such as aero kits or performance components, we recommend professional installation to ensure the best fit and results. Each product page includes installation notes and difficulty levels.
Are your parts tested for quality and durability?

Yes — every product goes through strict quality checks and is either TUV-certified, ISO-certified, or tested by our in-house team and trusted installers. We only offer parts we’d confidently run on our own cars.
What if the product doesn’t fit?

We offer easy, hassle-free returns within 14 days of delivery. If the fitment issue is on our end, we’ll cover return shipping. For other cases, exchanges are simple. Full details can be found in our Returns & Warranty Policy
View More FAQS

Have Questions For Us?

You may also like

Let customers speak for us

from 56 reviews
BMW X5 G05 LCI M Sport – Gloss Black Aero Kit

Didn't want to pay the price of having a carbon fiber kit so I decided to go with gloss black this time.

Bryan
BMW X5 G05 LCI M Sport – Gloss Black Aero Kit
Mercedes Benz W205 C63 & C43 / A45 / CLA 45 - Carbon Fiber Seat Back Covers

Came in perfect timing right before I was about to go on a road trip.

Adam
Mercedes Benz W205 C63 & C43 / A45 / CLA 45 - Carbon Fiber Seat Back Covers
BMW M Performance Style Carbon Fiber Paddle Shifters

beautiful

Steve
BMW M Performance Style Carbon Fiber Paddle Shifters
Mercedes-Benz AMG GT / GTS / GTC – Active Rear Spoiler Delete Bypass Module

Good product fixed my speed limiter issue. Works as expected

Karem
Mercedes-Benz AMG GT / GTS / GTC – Active Rear Spoiler Delete Bypass Module
BMW G20/G22/G28/G87 Carbon Fiber Antenna Cover

Came in less than a week after placing order. Fits great and easy install with double sided tape.

Jay
BMW G20/G22/G28/G87 Carbon Fiber Antenna Cover
Mercedes Benz GLE W167/C167 350/450/580/53/63 (2020–2025) - Carbon Fiber Vented Hood

Good fitment. Loved the combination with the carbon fiber front lip

Anonymous
Mercedes Benz GLE W167/C167 350/450/580/53/63 (2020–2025) - Carbon Fiber Vented Hood
Porsche 911 992 (2019–2022) – Carbon Fiber Headlight Eyelid Covers

Pricey but looks good to me and my wife.

John
Porsche 911 992 (2019–2022) – Carbon Fiber Headlight Eyelid Covers
BMW M2 G87 & G42 220i / 230i / 240i – RGB DRL Headlight Module Set

Good product. My favorite is yellow.

Jayden
BMW M2 G87 & G42 220i / 230i / 240i – RGB DRL Headlight Module Set
Audi RS3 / TTRS – Titanium Valved Catback Exhaust System

Sounds good but a little loud on cold start.

Henry
Audi RS3 / TTRS – Titanium Valved Catback Exhaust System
Nissan 400Z RZ34 - Carbon Fiber Duckbill Spoiler

Good quality fit good

Donnie
Nissan 400Z RZ34 - Carbon Fiber Duckbill Spoiler
McLaren 720S / 750S / 765LT – Ryft Style Carbon Fiber Front Fenders

Best looking fenders in the market for 720s noone can change my mind.

Daniel
McLaren 720S / 750S / 765LT – Ryft Style Carbon Fiber Front Fenders
BMW F06/F12 6 Series – GTS Style Dragon Scale OLED Tail Lights

easy install. did it in my garage

Brayden
BMW F06/F12 6 Series – GTS Style Dragon Scale OLED Tail Lights
Toyota A90 Supra – EV-S Style Carbon Fiber Side Fenders

Fender got damaged in accident so decided to go carbon fenders. Fit good and looks good

Kevin
Toyota A90 Supra – EV-S Style Carbon Fiber Side Fenders
Mercedes W205 / AMG Models – Carbon Fiber Rear Seat Back Cover Trim

Installed these seat covers with 3m tape and fits great. Love the new look

Austin
Mercedes W205 / AMG Models – Carbon Fiber Rear Seat Back Cover Trim
Lexus CT/ES/GS/LS/RC/RC F 2014–2019 – Carbon Fiber Mirror Caps

These fit great for my lexus rcf

Brandon
Lexus CT/ES/GS/LS/RC/RC F 2014–2019 – Carbon Fiber Mirror Caps

Free Shipping Worldwide

Free shipping on all orders over $99.99. In-stock items typically ship within 1–4 business days.

14-Day Return

We accept returns within 14 days if there is any defect

Damage Compensation

We will compensate or exchange in case you receive a defective order

Customer Service

Our customer service team is available Monday - Friday, 9 AM – 5 PM PST.