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APR 21-26 Audi RS6 Avant/RS7 Sportback (C8) 4.0T Carbon Fiber Intake System

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Regular price $1,749.95
Sale price $1,749.95 Regular price $1,968.95
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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 Instructions
Installation 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
  • Carbon Fiber airbox with 52% larger airbox outlets
  • 50% reduction in pressure drop at the turbo inlets
  • 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
APR 21-26 Audi RS6 Avant/RS7 Sportback (C8) 4.0T Carbon Fiber Intake System

$1,749.95

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Can I return a part after it has been installed?

Generally, installed or used performance parts cannot be returned. We strongly recommend verifying vehicle fitment and inspecting the product before installation.

Can I cancel my order after it has been placed?

We begin processing orders as quickly as possible. If you need to cancel, contact us immediately. Once an order has entered fulfillment, been submitted to a supplier, or shipped, cancellation may no longer be possible.

Will this part fit my vehicle?

Fitment varies by year, make, model, trim, engine, and drivetrain. Use our vehicle fitment information to confirm compatibility. If you're unsure, contact us with your VIN and we'll help verify fitment before you order.

How do I know if this is the right upgrade for my build?

Not every upgrade makes sense for every vehicle or build. Tell us your vehicle, current modifications, and performance goals, and we'll help determine whether this product is a good fit.

Are the products you sell authentic?

Yes. We source products through established manufacturers and authorized distribution channels. We do not sell counterfeit or imitation performance parts.

Is professional installation recommended?

For most performance components, yes. Proper installation is critical for fitment, reliability, and performance. Some products may also require specialized tools, programming, tuning, or additional supporting modifications.