The APR 4.0T EA825 Intake System is here for the Audi (C8) RS6 and RS7!The APR Intake System is a substantial upgrade for the 4.0T EA825 engine. It offers significant horsepower and torque gains through a high flow design that greatly increases airflow while reducing pressure drop.We've upgraded every part that actually translates to increased performance. Throttle response sharpens, as the system lets your engine to breath more freely. This causes the turbochargers to work less hard, which directly translates to the gains you feel. On top of that, the stunning carbon fiber and aluminum design looks fantastic in the engine bay and adds a pleasant auditory note to the engine. The filter is washable and reusable, and the cast aluminum turbo inlets use adapter rings with ideal entrances, making them compatible with larger turbochargers. This lets the system support even higher airflow levels, with low pressure drop, and even more horsepower and torque as you continue to mod!Design Overview and Testing:There was no component overlooked in the search for performance; the airbox, filter, couplers, and turbo inlets were each extensively analyzed and modified for maximum flow. The upgraded APR filter unit, featuring a low restriction cotton gauze media, flows 8% more than stock without sacrificing air quality. Flow is further improved by 52% larger airbox outlets, and 93% larger turbo inlets. The significantly improved APR turbo inlets are compatible with turbos featuring up to a 29% larger inlet port; various inlet adapters ensure that the APR intake will provide optimized flow for a wide range of turbos. Overall flow improvements of the intake result in a 50% reduction in pressure drop compared to OEM. The APR intake flows 19% less than the theoretical maximum supported by the OEM turbo inlet port diameter; a significant improvement compared to the OEM intake which flows 37% less than the theoretical maximum.
Installation InstructionsInstallation Instructions
- Inlet piping diameter is maximized from the airbox outlets to the turbocharger inlets
- 93% larger aluminum turbocharger inlets with adapter rings for larger turbochargers
- Billet turbo adapter rings make fitting this system to larger turbo possible
- +47 AWHP & +38 AWFT-LBS at the wheels measured over stock (Stage 1 93)
- High flow and washable pleated cotton gauze filter material
- Smooth and high flow turbocharger inlet pipe couplers
- Inlet piping addresses the main system restriction
- 50% reduction in pressure drop at the turbo inlets
- Carbon Fiber airbox with 52% larger airbox outlets
- Turbos operates more efficiently
- Enhanced engine sound
- Turbos spool faster
- Emissions friendly
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2021-2023 |
Audi |
RS6 Avant |
Base |
| 2025 |
Audi |
RS6 Avant |
GT |
| 2024-2026 |
Audi |
RS6 Avant |
Performance |
| 2021-2023 |
Audi |
RS7 Sportback |
Base |
| 2024-2026 |
Audi |
RS7 Sportback |
Performance |
SHIPPING
All items are subject to a handling period before they are dispatched. 99% of orders leave the warehouse within 1-3 days of payment. We will notify you by email when your items have been shipped. Most items should be received within 3-7 business days of your order date. This may be longer for international delivery.
* DELIVERY TIME= Processing Time + Shipping Time
* These shipping times are estimates, not guarantees but we always strive to get your order to you as soon as possible.
Shipping Costs:
β Shipping fees are calculated at checkout based on your location and the chosen shipping method.
Order Tracking:
β Once your order ships, you will receive a confirmation email with a tracking number and a link to monitor your shipment's status.
International Shipping:
β We ship to more than 140 countries on MOST but not all brands. International shipping is calculated live at checkout from your address and the size and weight of your order. Some parts ship directly from our US distributorβs warehouse, so one order may arrive in more than one package.
Customs, Duties & Import Taxes:
β International orders ship duties unpaid. Import taxes, VAT, duties and brokerage fees are not included in our prices or shipping charges and are the buyerβs responsibility. They are collected by the carrier (DHL, UPS, FedEx or USPS) on delivery.
β If an international package is refused or not collected, the original shipping charge, the return shipping cost and any carrier or customs fees will be deducted from any refund.
β Please check with your local customs office before ordering. You are responsible for making sure the parts you order can be legally imported and used in your country.
Lost or Damaged Shipments:
β We are not liable for packages that are lost or damaged during shipping. For damaged items, please contact the shipping carrier to file a claim.
Customer Service Contact:
β For any questions regarding shipping, reach out to our customer service team at sales@sbxperformance.com
RETURN/REFUND POLICY
We have a 30-day return policy, which means you have 30 days of purchase your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. Youβll also need the receipt or proof of purchase.
-Returns accepted within 30 days of purchase if the item is unused and in original packaging.
-Customer is responsible for return shipping unless the product is defective.
-Refunds processed within 5-7 business days after receiving the returned item.
To start a return, you can contact us at sales@sbxperformance.com.
If your return is accepted, weβll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at sales@sbxperformance.com.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
We do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. Youβll also need the receipt or proof of purchase.
Refunds
We will notify you once weβve received and inspected your return, and let you know if the refund was approved or not. If approved, youβll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since weβve approved your return, please contact us at sales@sbxperformance.com.
