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Audi A7 S-Line / S7 C8 Sportback Carbon Fiber Rear Bumper Diffuser 2018 - 2020

Audi A7 S-Line / S7 C8 Sportback Carbon Fiber Rear Bumper Diffuser 2018 - 2020

SKU: 1600832266876

Sale price  $779.99 USD Regular price  $856.00 USD
Shipping calculated at checkout.

2019–2020 Audi A7 S-Line / S7 C8 Sportback Rear Bumper Diffuser – Carbon Fiber

Transform the rear profile of your Audi A7 S-Line or S7 C8 Sportback with this carbon fiber rear bumper diffuser. A direct-fit retrofit for the factory rear bumper, this diffuser sharpens the lower rear end — visually widening and lowering the rear stance for a more aggressive, motorsport-inspired presence with a genuine carbon weave finish.

Build

  • Material: Genuine carbon fiber, autoclave cured using a 3D design and CNC moulding process for consistent resin distribution and a tight, uniform weave
  • Surface finish: UV-protected high-gloss epoxy-polished top coat that holds its deep carbon appearance through sustained outdoor and driving exposure without fading or yellowing
  • Configuration: Single-piece diffuser for the lower rear bumper
  • Weight: Lightweight at approximately 1.25 kg

Design & Aerodynamics

  • Aggressive stance: Diffuser profile visually widens and lowers the rear stance for a more track-inspired rear-end presence
  • Carbon aesthetic: Directional weave and gloss finish complement the factory C8 Sportback bodywork for a coordinated, motorsport-grade look
  • Factory-style integration: Precision-molded to the contours of the factory rear bumper for a clean, seamless fit

Fitment

  • 2019–2020 Audi A7 S-Line C8 Sportback (second generation / MK2)
  • 2019–2020 Audi S7 C8 Sportback (second generation / MK2)
  • Fits A7 S-Line and S7 factory rear bumper only — not compatible with the standard non-S-Line A7 or aftermarket bumper configurations
  • Not compatible with the previous C7 generation
  • Body style: Sportback only

Package Contents

  • 1 × carbon fiber rear bumper diffuser
  • Adhesive tape for installation
  • Mounting screws for installation

Installation

  • Tape and screw mounted: Secures with both the included adhesive tape and mounting screws for a secure, long-lasting fit suited to regular driving
  • Surface prep: Thoroughly clean, degrease, and dry the rear bumper at the diffuser position before fitting to ensure maximum adhesion
  • Alignment: Ensure the diffuser is centered and symmetrical across the rear bumper before final installation
  • Professional installation recommended for correct positioning, panel-gap consistency, and finish

Before You Install

  • Confirm your car is an A7 S-Line or S7 C8 Sportback (2019–2020) before ordering — this will not fit the standard non-S-Line A7 or the previous C7 generation
  • This diffuser uses screws in addition to adhesive tape — installation involves hardware mounting, so confirm placement before securing
  • Verify generation (C7 vs. C8) and trim using your model year and chassis code if you are unsure

K2 Industries & OUR OWN FAQ's

How do I check fitment?

Check the listing for your year, make, model, trim and engine. Body style, build date and factory options can matter. If the listing is unclear, send FI Performance your vehicle details and the product link or SKU before ordering.

What comes with this part?

Check the product description for quantities, hardware and accessories. Photos may show the part installed with other components. Ask us if you need to confirm whether a part is sold individually, as a pair or as a kit.

Will I need extra parts or modifications?

That depends on the part and your setup. Check for adapters, wiring, coding, tuning, trimming or additional hardware before booking installation. If you already have aftermarket parts, tell us what’s installed.

What should I check for headlights or tail lights?

Match your factory lighting type, connector and body style. Halogen, HID and LED assemblies can differ even on the same model. Check pre-facelift versus facelift fitment and features such as adaptive lights or leveling.

Should I have a shop install it?

We recommend a qualified installer for wiring, engine, brake and suspension work. Inspect the part and confirm fitment before cutting, drilling, painting or modifying anything.

When will my order ship?

Availability and lead time vary by item. If you’re working around a shop appointment or event, contact FI Performance for a current estimate before ordering.

How do returns and warranty claims work?

Contact FI Performance with your order number before sending anything back. Eligibility depends on the item, its condition and the applicable policy. If there’s damage or a defect, keep the packaging and send photos of the part, label and issue.

Is this part intended for street use?

Check the listing for any use restrictions and confirm the requirements where you drive. If you need a specific approval or certification, ask us to verify it for the exact part number before ordering.

Why should I buy from FI Performance?

FI Performance is a USA-based team of automotive enthusiasts focused on quality, reliability and helpful support. We work closely with manufacturers and can help guide your build from product selection through order support.

How can I contact customer support?

Reach FI Performance by live chat, email or phone for product questions, order help and automotive guidance.

What parts are best for my car and goals?

Tell FI Performance your vehicle, intended use and goals. We can help narrow down the right parts and put together a practical modification plan for your build.

Do you offer financing options?

Eligible financing options are shown at checkout. Select the available financing method during checkout to review payment terms and monthly-payment options.

How do I track my order?

When your order ships, FI Performance sends tracking information by email so you can follow delivery progress and view the estimated arrival date.

What payment methods do you accept?

FI Performance accepts major credit cards, PayPal and any financing options displayed at checkout.

How do I know if I have factory Xenon lighting?

Factory Xenon lights commonly have a blue-tinted output and a short warm-up period. Check your owner's manual or send FI Performance your vehicle details so we can help confirm your factory lighting type.

What is the difference between Halogen, HID and LED lighting?

Halogen lighting is the traditional, affordable option. HID lighting typically provides greater brightness, while LED lighting is energy-efficient and long-lasting. FI Performance can help you select the correct option for your vehicle.

How do I prevent lighting condensation?

Condensation can occur as temperatures change. Lighting assemblies are designed to minimize it; contact FI Performance for guidance if you see persistent condensation or have product-specific questions.

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