• Audi A3 S3 RS3 8V (2017–2020) 10" Subwoofer Adapter Ring – Trunk OEM Fit.
  • Audi A3 S3 RS3 8V (2017–2020) 10" Subwoofer Adapter Ring – Trunk OEM Fit.
  • Audi A3 S3 RS3 8V (2017–2020) 10" Subwoofer Adapter Ring – Trunk OEM Fit.
  • Audi A3 S3 RS3 8V (2017–2020) 10" Subwoofer Adapter Ring – Trunk OEM Fit.
  • Audi A3 S3 RS3 8V (2017–2020) 10" Subwoofer Adapter Ring – Trunk OEM Fit.
  • Audi A3 S3 RS3 8V (2017–2020) 10" Subwoofer Adapter Ring – Trunk OEM Fit.
  • Audi A3 S3 RS3 8V (2017–2020) 10" Subwoofer Adapter Ring – Trunk OEM Fit.
  • Audi A3 S3 RS3 8V (2017–2020) 10" Subwoofer Adapter Ring – Trunk OEM Fit.

Audi A3 S3 RS3 8V (2017–2020) 10" Subwoofer Adapter Ring – Trunk OEM Fit

Audi A3 S3 RS3 8V (2017–2020) 10" Subwoofer Adapter Ring – Trunk OEM Fit

Low stock! Only 3 left
€100,00 EUR
€100,00 EUR
Shipping calculated at checkout.
  • Fully secure checkout
  • Trusted by thousands
  • Rated and reviewed

Processing time is 1–3 business days.

Larger items that require extra printing time may take 1–2 additional days.

Estimated delivery times:

  • EU: 5–12 business days
  • USA: 7–15 business days
  • Rest of World: 10–20 business days
  • DHL Express: usually 2–7 business days worldwide

Every order includes a tracking number.

Question about this product?

We're happy to help.

Audi A3 S3 RS3 8V (2017–2020) 10" Subwoofer Adapter Ring – Trunk OEM Fit – 8V0035412

Upgraded 10" subwoofer adapter ring designed for Audi A3 / S3 / RS3 8V platform (2017–2020).

This adapter allows installation of a 10-inch subwoofer into the factory rear deck location without cutting the vehicle. Fully reversible to stock.

Designed around Dayton RSS265HF-4 10" subwoofer, but may fit other 10" drivers with similar basket dimensions.

⚠ Important:
The adapter raises the subwoofer approximately +10mm to prevent cone travel from contacting the factory top cover. This creates a very subtle rear deck bump, visible only if you look closely through the rear-view mirror.

🔧 Fitment

✔ Audi A3 8V (2017–2020)
✔ Audi S3 8V (2017–2020)
✔ Audi RS3 8V (2017–2020)
✔ OEM sub location part number 8V0035412

Designed for trunk-mounted factory sub position.

📦 What You Receive

• Top adapter ring
• Bottom support section

Subwoofer, wiring, terminal and hardware are NOT included.

🧱 Material

3D printed in ASA (recommended for automotive interior use).

Why ASA?

Heat resistant

UV stable

Durable for long-term installation

Designed to withstand real automotive temperature cycles

As with all 3D printed parts, minor layer lines may be visible. For a perfectly smooth OEM finish, light sanding and painting is recommended.

⚙ Installation Notes

• No cutting required
• Fully reversible to factory configuration
• Optional: sound deadening mat recommended
• Terminal can be mounted on opposite side (requires drilling holes)

Professional installation recommended if upgrading full audio system.

🚨 Important Compatibility Note

This adapter was tested with Dayton RSS265HF-4.
Other 10" subwoofers may require measurement verification before purchase.

Order processing time is up to 3 working days. Each part made individually with care, please be patient and let us craft your order carefully!

Audi A3 S3 RS3 8V (2017–2020) 10" Subwoofer Adapter Ring – Trunk OEM Fit

€100,00 EUR

  • ACHIEVING

    4.8

    average rating

  • With

    95%

    positive reviews

  • LESS THAN

    3%

    return rate

Does it come with a warranty?

Yes. All our products are covered by a warranty against manufacturing defects.

If your item arrives damaged, cracked, or incorrect due to our error, we will replace it or issue a refund — your choice.

We will request a photo or video to confirm the issue.

Wear from use or installation mistakes is not covered under warranty.

What happens if I don't like it?

No problem — you can return the item within 60 days, as long as it:


  • has not been used or installed,

  • is not damaged,

  • is returned in good condition.

Shipping costs and customs fees are non-refundable, and return shipping is at the customer's expense unless the product is defective.

How fast is shipping?

Processing time is 1–3 business days.

Larger items that require extra printing time may take 1–2 additional days.

Estimated delivery times:


  • EU: 5–12 business days

  • USA: 7–15 business days

  • Rest of World: 10–20 business days

  • DHL Express: usually 2–7 business days worldwide

Every order includes a tracking number.

What's the returns policy?

You can return any unused and undamaged product within 60 days.

Full refunds are provided for the item cost (shipping and customs fees are non-refundable).

If the product is defective or there was an error on our side, we cover return shipping and offer either:

  • a full refund, or
  • a replacement (your choice).

For full details, please refer to our Return & Refund Policy.

Questions about this product?
Don't be a stranger.

Get in touch

Exclusive discounts, just for you. Sign up now.