APR Carbon Performance Intake System Audi RS4 / RS5 B9 (2.9 TFSI)

Fresh Cold Air. Pure Performance.

Unlock the full potential of your Audi RS4 or RS5 (B9) with this uncompromising carbon performance intake system. With 36% more airflow than the original system, significantly reduced pressure drop, and improved turbo response, this system delivers up to +19 hp and +23 Nm additional power on top of Stage 1 software.
This is not just an upgrade — this is a complete air intake system, from air inlet to turbo inlets, designed for maximum efficiency, cooling, and performance.

Why this system?

The standard air intake of the 2.9 TFSI biturbo presents a clear limitation: narrow pipes, high pressure drop, and restricted air supply. Many intake systems only replace the airbox, leaving the biggest restrictions untouched.
This complete intake system addresses the problem at its core with a 4” air filter outlet and a maximally enlarged diameter up to the turbo. The result: a significant increase in airflow, faster pressure build-up, and a noticeably more responsive throttle.

Carbon Masterclass

Every component is crafted from high-quality carbon fiber — not just for looks, but for pure efficiency. Thanks to the thin wall thickness, the internal diameter is increased, further optimizing airflow and performance.
Carbon also allows for complex, organic shapes — essential to maintain maximum flow within the limited space of the RS4/RS5 engine bay.
The result? An intake that looks spectacular, sounds great, and allows the turbos to breathe optimally.

Advanced Airbox & Air Guiding

The airbox is fed by a specially designed air inlet opening that maximizes incoming air. Strategically placed openings provide additional airflow and channel hot air away from the engine. This keeps intake temperatures low and provides a rich, sporty sound — without being too overwhelming.
The enormous 7” x 7” air filter with a 5.5” front inlet and 4” outlet offers an extremely large filter surface area, minimizing air resistance and ensuring the filter lasts for many thousands of kilometers.
The washable cotton filter medium can be easily cleaned and reused for long-lasting performance.

Technical Specifications

• Full carbon air intake system (from air inlet to turbo inlets)

• +19 hp / +23 Nm with Stage 1 software

• 36% more airflow than original

• Greatly reduced pressure drop

• Larger 7” x 7” air filter with 5.5” inlet and 4” outlet

• Improved turbo response and faster spool-up

• Washable cotton filter medium

• OEM fitment, direct replacement without modifications

• Optimal cooling and sporty intake sound

• Designed and manufactured with German craftsmanship

Compatibility

• Audi RS4 B9 2.9 TFSI Biturbo (2017+)

• Audi RS5 B9 2.9 TFSI Biturbo (2017+)

SKU

APR-CARBON-INTAKE-RS4RS5-B9