Upgrade the rear end of your Audi RS3 8V Saloon / Sedan with our handcrafted FRP rear diffuser valance, designed for compatible 2016–2020 models.
Handcrafted by XUK LTD from fibre-reinforced plastic (FRP), the diffuser replaces the original lower rear diffuser to give the rear bumper a more aggressive and distinctive appearance.
The diffuser is supplied unpainted and requires appropriate preparation and painting before final installation.
IMPORTANT: This is a made-to-order product and is non-refundable. Please confirm fitment before ordering.
Key Features
- Designed for Audi RS3 8V Saloon / Sedan
- Compatible with 2016–2020 models
- Handcrafted by XUK LTD
- Manufactured from fibre-reinforced plastic (FRP)
- Rear diffuser / rear valance design
- Supplied unpainted
- Replaces the original lower rear diffuser
- Rear spoiler is not included
- Professional installation strongly recommended
- Made-to-order product
- Aftermarket styling part
Vehicle Fitment
Designed for:
- Audi RS3 8V – 2016–2020 – Saloon / Sedan
Please ensure that your vehicle matches the fitment information above before ordering.
If you are unsure about compatibility, please contact XUK LTD with your vehicle details and photographs of the rear bumper before placing your order.
What’s Included
- 1 × handcrafted FRP rear diffuser / rear valance
Rear spoiler is not included.
No additional mounting hardware is stated as being included.
Material and Finish
Material: Fibre-reinforced plastic (FRP)
Finish: Unpainted
Position: Rear / lower rear bumper
Product type: Rear diffuser / rear valance
Vehicle platform: Audi RS3 8V
Body style: Saloon / Sedan
Handcrafted by XUK LTD from fibre-reinforced plastic (FRP).
The rear diffuser is supplied unpainted and requires appropriate preparation before painting and final installation.
FRP Finish Information
FRP parts are handcrafted differently from injection-moulded plastic parts and may display minor surface imperfections as part of the manufacturing process.
The diffuser is supplied unpainted and may require normal body-shop preparation before the final paint finish is applied.
We recommend test-fitting the rear diffuser before final preparation or painting to make sure it fits correctly, lines up evenly and sits in the correct position.
Professional preparation and painting by an experienced automotive body shop are recommended.
Preparation and Painting
The rear diffuser should be trial-fitted to the vehicle before any final preparation or painting is carried out.
FRP parts may require normal body-shop preparation such as sanding, filling or minor adjustment before primer and paint are applied.
Once fitment and alignment have been confirmed, the diffuser can be prepared, primed and painted to the required finish.
Professional preparation and painting by an experienced automotive body shop are recommended.
Installation
Professional installation is strongly recommended.
The rear bumper should first be removed to provide access to the original rear diffuser and its mounting points.
Once the rear bumper has been removed, carefully unclip and remove the original diffuser.
Position the new FRP rear diffuser against the bumper and align the mounting tabs with the corresponding slots.
Check that the diffuser sits correctly and follows the surrounding bumper lines before securing it permanently.
Once correctly aligned, the diffuser should be secured through the appropriate mounting tabs using suitable screws.
Depending on the vehicle’s exhaust setup, exhaust adjustment or modification may be required to ensure the tailpipes align correctly with the new rear diffuser.
The rear bumper can then be reinstalled and the final fitment and alignment checked.
Professional fitting by an experienced automotive technician or body shop is strongly recommended.
Made to Order – Non-Refundable Item
PLEASE NOTE: This product is custom-made specifically to order.
Because this item is manufactured specifically for each order, it is classified as a made-to-order / special-order product and is non-refundable.
Made-to-order items cannot be returned or refunded for change of mind. Please ensure that you have confirmed the correct product and fitment before placing your order.
This does not affect any statutory rights that may apply if an item is faulty, damaged or not as described.
Delivery
Worldwide delivery is available.
As this product is made to order, production and dispatch times may differ from standard stocked products.
Standard UK delivery information, dispatch times and international shipping details can be found in the XUK LTD Shipping Policy.
Frequently Asked Questions
Will this rear diffuser fit an Audi RS3 8V Saloon?
Yes. It is designed for the compatible Audi RS3 8V Saloon / Sedan models listed above from 2016–2020.
Will this diffuser fit an Audi S3 8V?
This product is specifically listed for the Audi RS3 8V Saloon / Sedan from 2016–2020.
Audi S3 fitment is not specified for this product and should not be assumed.
What material is the rear diffuser made from?
The rear diffuser is handcrafted by XUK LTD from fibre-reinforced plastic (FRP).
What finish is the diffuser supplied in?
The diffuser is supplied unpainted and requires appropriate preparation and painting before final installation.
Does the rear diffuser need painting?
Yes. The diffuser is supplied unpainted and should be properly prepared and painted to achieve the required finished appearance.
Does the original rear diffuser need to be removed?
Yes. The original rear diffuser must be removed before the new FRP rear diffuser can be installed.
Does the rear bumper need to be removed?
Yes. The stated installation method requires removal of the rear bumper to access and replace the original diffuser.
Are exhaust modifications required?
They may be.
Depending on the vehicle’s exhaust setup, adjustment or modification may be required so the tailpipes align correctly with the new rear diffuser.
Is the rear spoiler included?
No. The rear spoiler is not included.
This listing is for the FRP rear diffuser / rear valance only.
Should the diffuser be test-fitted before painting?
Yes. The rear diffuser should be test-fitted before final preparation or painting to make sure it fits correctly, lines up evenly and sits in the correct position.
Is this a genuine Audi rear diffuser?
No. This is an aftermarket FRP rear diffuser handcrafted by XUK LTD for the compatible Audi RS3 8V application listed above.
Is this product made to order?
Yes. This handcrafted FRP rear diffuser is custom-made specifically to order and is classified as a made-to-order / special-order product.
Can I return the diffuser if I change my mind?
No. Because this product is custom-made specifically to order, it is non-refundable and cannot be returned for change of mind.
This does not affect any applicable statutory rights if the product is faulty, damaged or not as described.
Is professional installation recommended?
Yes. Professional installation is strongly recommended because fitting requires removal of the rear bumper, correct alignment of the diffuser and potentially exhaust adjustment.
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