The Eventuri Audi B9 RS4 / RS5 Black Carbon Intake System is a complete re-engineering of the factory airbox and inlet tract, developed to deliver less restrictive airflow to the turbocharger while maintaining consistently low intake air temperatures. In the heat-sensitive RS4 and RS5 engine bay, simply increasing airflow with an open system leads to power-robbing heat soak. Eventuri’s sealed carbon architecture solves this by combining higher flow capacity with thermal efficiency for repeatable real-world performance gains.

At the core of the system is Eventuri’s patented Venturi filter housing, which replaces the restrictive stock airbox and flexible inlet pipe with a smooth, organically shaped carbon assembly. The one-piece housing and rigid intake tube eliminate turbulence caused by the convoluted factory ducting, allowing airflow to remain laminar as it enters the turbo inlet. The result is improved turbo efficiency, sharper throttle response, and increased power throughout the rev range.

A full carbon duct and scoop system channels a constant supply of ambient air from the front of the vehicle directly into the sealed intake, ensuring stable inlet temperatures even under demanding driving conditions. Each component is engineered to work as part of an integrated system, delivering both measurable performance improvements and a dramatic transformation to the engine bay appearance.

Product Details

• Patented Eventuri carbon fiber Venturi filter housing with integrated intake tube
• Pre-preg black carbon fiber construction with high-gloss finish
• High-flow Generation 2 air filter
• Carbon fiber primary intake duct
• Carbon fiber front air scoop
• Carbon fiber secondary duct
• Smooth one-piece rigid inlet tube for reduced turbulence
• Laser-cut stainless steel bracketry
• CNC-machined mounting stubs
• High-quality silicone couplers with OEM-spec hose clamps
• Performance gain: 11–16hp, 12–17ft-lb at the wheels
• Replacement filter: EVE-661-G2-FTR (Type B)
• Direct bolt-on installation

Vehicle Applications

• Audi B9 RS4 Avant
• Audi B9 RS5 Coupe
• Audi B9 RS5 Sportback

Notes

• Designed and hand-assembled in the UK
• This item is not eligible for return once opened
• Warranty coverage and damage-in-transit support are fully provided
• View emissions compliance notice