2017-2019 For Audi A5 S5 B9 Audi RS5 S5 Style A5 diffuser with tailpipe Exhaust Tips

Product Description

Overview

Transform the rear profile of your 2017–2019 Audi A5 or S5 B9 with this RS5 style rear diffuser. Designed for the B9 platform (2017–2019), this diffuser replaces your factory rear valance with the aggressive, high‑performance look of the legendary RS5 — featuring a gloss black UV‑stabilized ABS polymer construction, aggressive honeycomb mesh design, and tailpipe exhaust tips.

The B9 generation brought sharp, modern styling to the A5/S5 lineup. This RS5‑inspired rear diffuser builds on that foundation, giving your A5 or S5 a more commanding presence from every angle while improving rear‑end aerodynamics. The single‑tip/dual‑outlet layout not only enhances the car's visual stance but also actively reduces rear lift and drag for better high‑speed stability. Unlike the restrictive factory valance, this RS5‑style diffuser opens up the rear, providing a more flowing look that complements the car's natural lines.

Complete Conversion Kit: Includes rear diffuser, tailpipe exhaust tips, self‑tapping screws, 3M VHB tape, and installation manual.

Aerodynamic Benefits: The sculpted honeycomb design channels airflow, reduces turbulence, and enhances rear‑end stability while adding a sporty, RS5‑inspired appearance.

Serving both individual enthusiasts (B2C) and businesses (B2B):
✅ US warehouse for fast shipping
✅ CE certified for quality assurance
✅ 1‑year warranty for peace of mind
✅ Factory direct – competitive pricing
✅ Dropshipping & wholesale programs available
✅ Custom OEM/ODM orders welcome

5 Key Features

1. Aggressive RS5 Style Design
Give your A5/S5 B9 the sharp, race‑inspired look of the RS5. The aggressive honeycomb mesh pattern and sculpted fins create a bold, motorsport‑inspired appearance that dramatically enhances the rear profile. This diffuser is specifically contoured to match the factory S‑Line/S5 bumper, ensuring a seamless fit.

2. Complete Kit with Tailpipe Exhaust Tips
All‑in‑one conversion kit includes the rear diffuser and tailpipe exhaust tips — everything you need for a full RS5 style rear transformation. Features a dual‑outlet design that fits factory and most aftermarket exhaust systems and is designed to accept exhaust tips up to 4" in diameter.

3. Premium Gloss Black UV‑Stabilized ABS Construction
Manufactured from high‑quality UV‑stabilized ABS polymer — the same material used in OEM bumpers and body parts. The deep high‑gloss black finish is UV‑protected to prevent fading, yellowing, or bubbling from harsh sunlight. No painting required — ready to install out of the box. A premium pre‑preg dry carbon fiber version is also available for those seeking ultimate weight savings and weave aesthetics.

4. Direct Fitment for B9 (2017–2019) — No Cutting Required
Engineered for a perfect OEM+ fit onto A5 S‑Line or S5 rear bumpers only using factory mounting locations. Designed for Coupe, Sportback, and Cabriolet (Convertible) body styles. Installs with no drilling, cutting, or modification of any kind required. Simply remove your currently installed valance, line up all tabs, and lightly press the diffuser in place until the tabs click into position.
Note: This diffuser is NOT compatible with Base (non‑S‑Line) A5 models. Factory S‑Line and RS5 rear diffusers are physically incompatible with the standard A5 bumper.

5. CE & TUV Certified with EPR Compliance
This diffuser is CE certified, meeting European safety and quality standards for automotive aftermarket parts. It is also TUV MATERIALGUTACHTEN certified, verifying material quality and safety for road use. Additionally, it complies with EPR (France/Germany) environmental regulations for packaging and waste management. Do not remove the protective film until you are certain the product fits, as removal will void the return policy. If you decide to paint the product, primer must be used first.

Specifications

What's in the Box

• 1 × RS5 style rear diffuser 

• 2 × Tailpipe exhaust tips 

nstallation Guide

Professional installation is strongly recommended – do not attempt DIY unless you are a qualified technician.

Installation Time: 1–2 hours | Difficulty: Moderate

Requirements:

• Professional installation by someone with aftermarket product experience is strongly recommended.

• Rear bumper must be removed to install this diffuser properly.

• Self‑tapping screws are recommended to be used in the corners and tabs for secure fitting.

• The OEM exhaust may require modifications (cutting/welding) for the new exhaust tips to fit properly.

Shipping & Returns

 20-Year Specialization: 158000+ bumpers installed since 2006.

• Shipping: Worldwide delivery. In-stock US orders ship within 1-3 business days. International orders: 22-25 business days. Free shipping & no sales tax(Continental US only).

• Returns: If the kit does not fit, arrives damaged, or you are unsatisfied, return it within 15 days as long as it remains uninstalled and unpainted – free return shipping for genuine fitment issues. Combined with our 1-year warranty, this risk-free policy gives body shops, resellers, and DIYers complete confidence when ordering For Audi facelift kits. Contact us for wholesale pricing and US stock availability.

• Warranty: 1-year warranty against manufacturing defects.

Frequently Asked Questions

Q1: Will this fit my 2017–2019 Audi A5 or S5?

A: Yes, if your vehicle is a B9 platform (2017–2019) with an S‑Line or S5 rear bumper. This diffuser will NOT fit Base (non‑S‑Line) A5 models. Contact us with your VIN for confirmation.

Q2: How do I know if my A5 has S‑Line or Base?

A: The S‑Line exterior package includes sportier bumpers, side skirts, and fender badges. If your A5 does not have these, you have the Base model. S‑Line and S5 rear diffusers are physically incompatible with the Base A5 bumper.

Q3: Does this kit include exhaust tips?

A: Yes! The complete kit includes tailpipe exhaust tips, self‑tapping screws, and 3M VHB tape — everything needed for a full RS5 style rear transformation.

Q4: Does the diffuser require painting?

A: No. It comes in a premium high‑gloss black UV‑stabilized finish — ready to install out of the box. UV‑protection prevents fading and yellowing. If you decide to paint it, primer must be used first.

Q5: Is drilling required for installation?

A: No drilling, cutting, or modification of any kind is required when using factory mounting locations. However, self‑tapping screws are recommended in corners and tabs for best fitment. The OEM exhaust may require cutting for the exhaust tips to fit.

Q6: Is professional installation required?

A: Yes, strongly recommended. Professional installation by someone with aftermarket product experience is highly advised. The rear bumper must be removed to install this diffuser properly.