Upgrade the rear profile of your 2012–2015 Audi A7 Quattro Sportback with this carbon fiber rear diffuser, designed for selected A7 Quattro rear bumper configurations. Its multi-fin layout, wide exhaust openings and full-width replacement-style construction create a more defined lower rear profile while complementing the wide, flowing shape of the A7 Sportback.

Unlike a small add-on diffuser lip, this component is designed as a complete rear diffuser section for the lower bumper area. The sculpted vertical fins and raised side sections add stronger visual definition across the rear of the vehicle. For other exterior upgrades for this model family, browse our Audi A7/S7 parts collection.

2012–2015 Audi A7 Quattro Carbon Fiber Rear Diffuser

This Audi A7 Quattro carbon fiber rear diffuser is designed around the broad rear profile of the four-door Sportback body. The multi-fin shape adds structure beneath the rear bumper without turning the product into an oversized universal-style diffuser.

The design is especially suitable for A7 owners looking to make the lower rear section more distinctive while retaining the long horizontal lines that define the Audi A7 Sportback.

Vehicle Fitment

Confirmed fitment includes selected 2012–2015 Audi A7 Quattro Sportback models. Listed applications include multiple Base, Luxury, Elite, S Line, Premium Plus, Prestige, Technik, Progressiv and TDI configurations depending on model year.

• 2012 Audi A7 Quattro
• 2013 Audi A7 Quattro
• 2014 Audi A7 Quattro
• 2015 Audi A7 Quattro

Because Audi offered different trim, rear bumper and exhaust configurations across these model years, compatibility should be confirmed from the actual rear bumper rather than relying only on the trim name.

This product should not be assumed to fit Audi S7 or RS7 models unless compatibility is separately confirmed.

For additional products grouped by generation, browse the 2011–2014 Audi A7/S7 C7 collection or the 2015–2018 Audi A7/S7 C7.5 collection.

Multi-Fin Rear Diffuser Design

The Audi A7 Sportback has a particularly wide and horizontal rear profile, making the lower bumper an important part of the vehicle's overall appearance. This diffuser uses multiple vertical fins and pronounced side sections to give the rear bumper a sharper and more aggressive visual structure.

The full-width design also creates a clearer separation between the painted rear bumper and the carbon fiber lower section, making the diffuser more visually prominent than smaller add-on trim pieces.

Carbon Fiber Construction

The diffuser features a visible woven carbon fiber surface with a gloss finish. The exposed carbon texture provides strong contrast against the factory body color and pairs naturally with other carbon fiber exterior upgrades.

For A7 owners already using carbon fiber spoilers, mirror covers, side skirts or front-end components, the rear diffuser can help create a more consistent exterior material theme across the vehicle.

Replacement-Style Rear Diffuser

This product is designed as a replacement-style rear diffuser rather than a simple adhesive diffuser lip. Its full-width structure follows the lower rear bumper and includes dedicated sections around the exhaust outlet areas.

Before installation, complete a full test fit and check the rear bumper shape, exhaust outlet position, mounting points, left-to-right alignment and clearance around the exhaust area.

Professional installation is recommended, particularly if removal of the factory lower valance or adjustment of mounting points is required.

Check Rear Bumper and Exhaust Fitment

Rear diffuser compatibility on the Audi A7 depends on more than the model year alone. Different trims and regional configurations may use different lower bumper or exhaust layouts, so customers should compare their vehicle with the product images before ordering.

If your A7 has an aftermarket exhaust, a different rear bumper, an existing diffuser modification or any uncertainty about fitment, send us your vehicle year, exact trim and clear rear bumper photos through our Fitment Support page before purchase.

For other Audi exterior upgrades across A3, A4, A5, A6, A7, RS, TT, R8 and Q models, browse our complete Audi parts collection.