Audi A5/S5 Carbon Fiber Rear Diffuser 2017-2019 with Exhaust Tip

Upgrade the rear of your 2017-2019 Audi A5 or S5 with a carbon fiber rear diffuser and exhaust tip styling package designed to sharpen the lower rear bumper and create a more aggressive performance look.

Will This Fit My Car?

This rear diffuser is designed for compatible 2017-2019 Audi A5 and S5 applications. Before ordering, confirm your model year, trim, rear bumper style, exhaust layout, lower mounting surface, and selected variant.

• Confirm your Audi is a compatible 2017, 2018, or 2019 A5 or S5
• Check rear bumper style, lower bumper shape, and diffuser mounting points
• Confirm exhaust tip clearance and rear sensor placement
• Check compatibility with factory or aftermarket exhaust setups
• Test-fit before drilling, trimming, coating, wrapping, or final installation

What Is Included?

Your order includes the selected Black / Front Bumper / ABS variant shown on this product page. Product images show the rear diffuser style, exhaust tip layout, and active listing components.

How Hard Is Installation?

Installation difficulty is moderate to advanced. Rear diffuser installation may require bumper removal, test fitting, exhaust clearance checks, secure mounting, and alignment with the lower bumper.

Professional installation is strongly recommended. Do not drill, trim, coat, wrap, or permanently mount the diffuser until fitment has been confirmed.

Is This Plug-and-Play?

No. This is an aftermarket rear diffuser and exhaust-tip styling product, not a guaranteed plug-and-play OEM replacement. Some installs may require trimming, drilling, hardware adjustment, bumper removal, or professional fitment work.

What Should I Check Before Ordering?

• Your Audi A5 or S5 year and rear bumper style
• Exhaust tip layout and rear diffuser clearance
• Rear parking sensors, reflectors, lights, and lower bumper trim
• Compatibility with aftermarket exhaust or existing rear aero
• Installer experience with rear diffusers and exhaust-tip fitment
• Factory-direct or made-to-order body parts cannot be canceled after 3 business days

What Makes This Rear Diffuser Different?

This diffuser sharpens the rear bumper while adding an exhaust-tip-focused styling upgrade. It pairs well with front lips, side skirts, carbon mirror caps, spoilers, wheels, and Audi lighting upgrades.

Best For Daily Drivers, Show Cars, or Track Builds?

Best for Audi street builds, show cars, weekend builds, and content cars. It can work on daily drivers when installed carefully, but lowered cars should be cautious around steep driveways, parking blocks, exhaust heat, and road debris.

Complete Your Audi Build

• Audi A4/A5/S4/S5 Aftermarket Parts
• Audi Aftermarket Parts
• Exterior Body Parts & Kits
• Rear Diffuser Buying Guide
• Side Skirts Buying Guide

Shipping & Lead Time

This body part may ship factory-direct or by freight depending on packaging and carrier requirements. Body parts can take 15-60 days depending on production, inspection, packing, carrier scheduling, and transit. Free shipping is included, and no tariff is charged to the customer by Defiant Garage.

Installation Disclaimer

Professional installation is strongly recommended. Test fit before drilling, trimming, coating, wrapping, or final mounting.

Defiant Garage is not liable for vehicle damage, bumper damage, paint damage, exhaust clearance issues, exhaust heat damage, road damage, incorrect fitment, installation-related damage, freight handling damage after delivery acceptance, or modification-related issues caused by improper installation, misuse, lowered vehicles, road hazards, or failure to use a professional installer. By purchasing and installing this product, you agree to our Terms and Conditions.