Sale

K&N

Replacement Air Filter

$157.99 $126.39 Save $31.60

SKU: E-0643

In Stock
In Stock
Ships by Aug 29
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The K&N E-0643 is a high-performance replacement air filter engineered to boost horsepower and acceleration by improving airflow and filtration. This air filter is a direct, drop-in replacement for your vehicle's stock air filter, requiring no modifications for installation. Simply remove the old filter and insert the K&N E-0643 into your factory air box. Covered by K&N's Million-Mile Limited Warranty, this filter is built to the highest standards for street vehicles. It is compatible with the following Audi models: 2019-2022 Audi A8 Quattro L, 2020-2021 Audi A8 Quattro L Plug-In Hybrid, and 2022-2023 Audi S8 Base.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandK&N
Part NumberE-0643
CategoryAir and Fuel

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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