Eventuri carbon intake system for Audi RS4 B9

Tailor-made carbon intake system / intake solution, for real power and torque increase for Audi B9 RS4 from Eventuri

• Power increase: 13-17hp, 15-20ft-lbV box
• Acceleration: 100-200 km/h reduced by 0.5 seconds

The Audi B9 RS4/RS5 Eventuri intake system was developed to provide less restrictive airflow to the turbo while maintaining low intake temperatures. The RS5/RS4 engine bay is very prone to heat buildup, so simply using an open-type filter system would result in better airflow at higher intake temperatures. Therefore, we completely redesigned the airflow from the turbo intake to the front grille with a highly efficient, sealed system. The stock restrictive airbox and flexible plastic intake pipe have been replaced with our patented Venturi filter housing and a smooth transition ducting system. The coiled fabric intake pipe is replaced with our Venturi housing and integrated full carbon fiber pipe, resulting in a more consistent airflow entering the turbo intake pipe. The resulting performance gains and aesthetics are industry-leading for this platform.

Available with or without optional air intake in real carbon.

The improvements arise from a combination of reasons:

Included components

• Patented carbon fiber venturi housing with integrated high-flow tube filter
• Generation 2 carbon main air duct with expanding seal
• Carbon secondary air intake
• Carbon front air deflector
• Laser-cut stainless steel mounting brackets
• CNC-machined mounting pins
• Carbon intake housing construction

The filter housing consists of our custom-designed Generation 2 filter, the carbon housing, and the integrated pipe. The carbon housing encloses the rear-mounted filter and gently shapes the airflow downwards to the turbo pipe, which matches the diameter of the turbine inlet. This is a key feature of the intake concept, where we eliminated the requirement for a seamless transition to a coiled rubber hose between the intake and engine. The filter housing and integrated pipe extend to the stock turbo pipe, and by mounting it to the engine, the entire filter housing moves with the engine. As the engine and filter housing move under acceleration, it is able to maintain a seal to the duct through an expanding rubber profile mounted on the face of the duct.

This gentle reduction in cross-sectional area creates the Venturi effect, accelerating airflow while maintaining laminar conditions. It can be thought of as a large funnel. This is clearly visible in the diagram comparing our patent-pending design to an OEM intake system. Our custom filters support airflow through the housings, allowing for a consistent velocity profile as the airflow exits the housings.

Carbon main air duct with expanding sealThe duct directs the ambient air from the blade to the filter housing.It also creates a sealed volume of ambient air in front of the filter, from which the system can draw air at any time. The duct was designed to make the most of the available volume in the engine bay. To ensure a good seal against engine bay heat, the duct is additionally fitted with a flexible rubber rim around the openings, which press against the filter housing and the OEM front duct, creating the desired seal while allowing the housing to move with the engine. To further improve airflow, we have added an additional opening at the rear of the duct in the cold area of ​​the engine bay.

We receive a large number of custom orders and requests every day, so it's not always possible for us to have every item in stock at all times. If you need the item urgently, please contact us. here to our sales teamto check stock before making your purchase.

We fully understand if you are unsure whether a part is compatible with your car. Therefore, we strongly recommend that you contact your Inquiry to us Our friendly sales team will then contact you to confirm if this part is the right one you are looking for.

All our products come with a standard 2-year warranty. However, this depends on the type of product. For more details, see here.

At Upgrade my Car (R-Trade GmbH), we take great care to fully inform our customers about the intended use of our products. Please note that, unless otherwise stated, all of our products are specifically designed for professional racing use. These are intended solely for use in competitions on racetracks sanctioned by an officially recognized racing organization. We would like to point out that any use of our products outside of these terms and conditions, including recreational off-road use, may potentially violate local, state, or federal laws. It is important to understand that Upgrade my Car (R-Trade GmbH) assumes no liability for the legality of using our products on public roads. The responsibility for compliance with applicable laws lies solely with the purchaser. We strongly recommend that our customers familiarize themselves with and comply with applicable legal regulations before using our products.