Description
Give your Audi B9/B9.5 a serious airflow upgrade with the Untd. Performance 6″ Cold Air Intake, designed for performance-focused Audi 3.0T and 2.9T EA839 builds. Featuring a massive 6-inch intake design, this system is built for enthusiasts looking to maximize intake airflow capacity, enhance turbocharger induction sound, and support higher-output turbocharged applications.
Whether you’re running an ECU-tuned S4/S5 or building a high-performance RS4/RS5, this intake is designed to complement supporting modifications and demanding turbocharger setups. With its large-diameter design, it provides an intake solution for builds where maximizing airflow is a priority.
Key Features
6″ Large-Diameter Intake Design
Designed to provide increased airflow capacity compared with restrictive factory intake configurations, supporting the needs of tuned and modified turbocharged V6 engines.
Improved Turbocharger Airflow
A less restrictive intake path can help the turbocharger draw air more efficiently, particularly at higher airflow demands. Actual benefits depend on the factory intake limitations and the overall engine setup.
Enhanced Turbo Induction Sound
Enjoy a more pronounced turbo spool and induction sound under acceleration, adding a more performance-focused character to your Audi’s driving experience.
Built for Tuned Applications
An ideal supporting modification for compatible Stage 1 and Stage 2 ECU-tuned vehicles, as well as select hybrid-turbo and upgraded-turbocharger builds.
Increased Performance Potential
When the factory intake becomes a restriction, a larger-diameter intake may help support additional power. Intake-only horsepower gains are generally modest on stock-turbo vehicles, with the benefits depending on the engine calibration, turbocharger, and supporting modifications.
Performance-Oriented Upgrade
Designed for enthusiasts seeking a high-flow intake solution for their Audi S and RS platforms without relying on exaggerated horsepower claims.
Installation & Tuning
An intake-only installation generally does not require ECU tuning when the system is correctly matched to the vehicle. Modified turbochargers or custom ECU calibrations may require additional adjustments, depending on sensor configuration and airflow characteristics.
Estimated Performance Gains
The estimates below represent the potential additional contribution of the intake itself, not the total gains from ECU tuning. These are conservative planning estimates rather than verified dyno results for this specific product.
| Tuning Level | Estimated HP Gain from Intake | Estimated Torque Gain from Intake |
|---|---|---|
| Stock ECU | ~3–8 HP | ~2–6 lb-ft |
| Stage 1 ECU Tune | ~3–10 HP | ~3–8 lb-ft |
| Stage 2 ECU Tune | ~3–10 HP | ~3–8 lb-ft |
| Hybrid / Upgraded Turbo | Setup-dependent | Setup-dependent |
Stock ECU: Gains are typically modest, with improved induction sound and airflow capacity being the most noticeable changes.
Stage 1: The intake can complement ECU tuning, although most of the total power increase comes from the calibration rather than the intake alone.
Stage 2: With suitable supporting modifications, the intake may help maintain airflow capacity as engine output increases.
Hybrid / Upgraded Turbo: The potential benefit depends on turbocharger airflow requirements, intake restriction, inlet dimensions, and engine calibration.
Performance disclaimer: These figures are estimates, not measured results for this specific intake. Actual gains vary with engine version, turbocharger, fuel quality, ECU calibration, supporting modifications, ambient conditions, and dyno methodology.
Why Upgrade?
The factory intake is designed to balance noise, filtration, packaging, and everyday drivability. For owners modifying their Audi for increased performance, the Untd. Performance 3.5″ Cold Air Intake offers a larger-diameter intake option intended to support the airflow requirements of tuned turbocharged V6 applications.
This upgrade can help:
- Increase intake airflow capacity
- Reduce intake-side restriction where the factory system is a limitation
- Enhance turbo spool and induction sound
- Complement compatible Stage 1 and Stage 2 ECU tuning
- Support suitable hybrid-turbo and upgraded-turbocharger builds
- Provide a performance-oriented intake solution for modified Audi S and RS models
Compatible Vehicles
Audi S Models – 3.0T EA839
- Audi S4 B9 / B9.5 3.0T TFSI — 2017–2025, depending on market and configuration
- Audi S5 Coupe B9 / B9.5 3.0T TFSI — 2018–2025, depending on market and configuration
- Audi S5 Sportback B9 / B9.5 3.0T TFSI — 2018–2025, depending on market and configuration
- Audi S5 Cabriolet B9 / B9.5 3.0T TFSI — selected model years and markets
Audi RS Models – 2.9T EA839
- Audi RS4 Avant B9 / B9.5 2.9T TFSI — 2018 onward, depending on market
- Audi RS5 Coupe B9 / B9.5 2.9T TFSI — 2018 onward, depending on market
- Audi RS5 Sportback B9 / B9.5 2.9T TFSI — 2019 onward, depending on market
