Audi C8, RS6/RS7 Carbon Fibre V.1 Rear Diffuser

Audi C8, RS6/RS7 Carbon Fibre V.1 Rear Diffuser

Sharpen the rear of your RS6 or RS7 with the V.1 Carbon Fibre Rear Diffuser, a single-piece replacement valance with five centre strakes and tall exhaust surrounds that curve up around each outlet.

Manufactured from dry carbon fibre with a high-gloss twill finish, it fits in place of the factory valance on the original mounting points. Because it is supplied as one moulding rather than a multi-piece kit, there are no joins across the back of the car and nothing to align during fitment.

It is the cleaner of the two RS6 diffuser styles we carry, and it suits an owner who wants a substantial rear change without a competition look.

Key Features

Dry Carbon Fibre Construction

Manufactured using a dry carbon process, chosen for its rigidity and the depth of its finish under direct light.

Single Piece Construction

Supplied as one moulding, so there are no joins across the rear and no separate blades to align.

Five Centre Strakes

Vertical fins across the centre section give depth and shadow to the lower rear.

Curved Exhaust Surrounds

Each outlet is framed by a tall curved surround that carries the carbon up into the bumper.

Pre-Drilled Mounting Points

Mounting tabs are formed into the moulding at the factory locations, so the part locates against the bodywork without fabrication.

High Gloss Twill Finish

A clear gloss finish over a consistent twill weave, matched to the look of factory Audi Sport carbon components.

Performance Benefits

Transformed Rear End

Replaces the full lower rear panel, changing the character of the back of the car in a single part.

Straightforward Fitment

A one-piece design removes the alignment work that a multi-piece diffuser demands.

Improved Aerodynamic Profile

Designed to complement the aerodynamic profile of the car and help manage airflow around it.

Completes Your Carbon Fibre Build

Matches the weave and finish of the rest of the Proven Performance Parts Audi carbon range for a consistent exterior package.

Vehicle Fitment

Audi C8 RS6 Avant (2020+)

Audi C8 RS7 Sportback (2020+)

The standard A6, A7, S6 and S7 use a different rear bumper and are not covered.

Please Note

Professional installation is strongly recommended.

The factory rear valance is removed. This is a replacement panel, not an overlay.

Parking sensors, where fitted, are transferred from the original valance.

Minor preparation, alignment or adjustment may be required during installation to achieve optimal fitment.

Due to the nature of carbon-fibre manufacturing, slight variations in weave pattern may occur between products.

Why Choose Proven Performance Parts

We specialise in high-performance parts for European vehicles — including Volkswagen GTI & R models, Audi S/RS platforms, and BMW M vehicles. Every product we offer is carefully selected for its quality, fitment, and real-world performance — tested by enthusiasts, for enthusiasts.