The Eventuri intake for the RS3 has been tested by many respected tuners around the world who have built strong RS3/TTRS designs for road and track use. The first set of results comes from the MSL Performance team, who checked the intake on a stock RS3 8Y. Tests were performed on the same day, one after the other. As you can see in the graphs, there is a measurable increase over the entire rev range, reaching 22 HP. This result is noticeable even in the production version and translates into better throttle operation and more dynamic acceleration on the road. Further results come from BR Performance from the Netherlands, where the Audi TTRS with the TTE700 hybrid turbine was tested. Tests were performed on the same day, back-to-back, with the mask closed. The factory housing was compared with an Eventuri Stage3 intake, as well as with the addition of a 4” Eventuri turbine intake, which is an optional product - details are available on the Audi product page. Summary of dyno results: Factory housing with modified factory turbo adapter for TTE700 = 576.5 HP Eventuri Stage 3 intake with modified factory turbine adapter for TTE700 = 606.5 HP Eventuri Stage 3 intake with Eventuri turbine adapter for TTE700 = 620.8 HP The Eventuri intake for the RS3 was also tested in projects with full turbo kits, squeezing the maximum potential from the DAZA engine. Tests conducted by Eurocharged Canada using an Eventuri stage 3 intake with a plan to obtain 1,010 HP at the wheels confirmed the capabilities of this system even more clearly. The Eurocharged team admitted that they were able to make more power at lower boost by using an Eventuri intake compared to the competition's intakes. Their RS3 posted a time of 9.1 seconds in the quarter-mile race with a final speed of 160 mph (257 km/h), and is on track to achieve a sub-9-second mark.

Such increases are the result of a combination of several factors: 1) A tightly closed system keeps intake air temperatures low - the RS3 engine compartment overheats quickly, so using an open cone filter will result in poorer performance. 2) The Venturi housing guarantees a smooth transition from the filter to the inlet pipes with an internal diameter of 103 mm. This allows hybrid turbines and full turbo kits to operate efficiently. 3) The entire set is made of pure pre-preg carbon fiber, which perfectly insulates thermally and has a smooth inner surface, unlike fiberglass with sharp resin lines.

The Eventuri intake system for the Audi RS3 8Y consists of several elements that fulfill precisely defined functions and are made in accordance with the highest quality standards, entirely from carbon fiber without any addition of glass fiber. This results in a smooth internal surface, ensuring unobstructed air flow. Below you will find descriptions of individual components and an explanation of their operation. Each intake system consists of the following components: • patented carbon Venturi housing with a 103 mm outlet • specially developed dry air filter with a high flow rate • carbon fiber intake duct • carbon tube with an internal diameter of 103 mm • OPF vent adapter (DWNA) • heat shield with gold reflective coating • laser cut stainless steel handles • silicone vent hose • silicone connectors and reducer

Patented Venturi filter housing

The Eventuri Stage 3 housing includes a specially created, high-flow air filter, an aluminum cap, laser-cut handles and a carbon shell itself. The shell houses a reverse-mounted filter, smoothing the airflow before it enters the intake pipes. A gentle reduction in the cross-sectional area causes the Venturi effect, i.e. acceleration of the air flow while maintaining its layered (laminar) arrangement. The housing design resembles a trumpet-shaped intake pipe (velocity stack). The diagram below shows a comparison between the Eventuri design and a regular intake system. To achieve the maximum airflow rate, Eventuri engineers completely redesigned the Stage 2 filter, enlarging it to the maximum size that the RS3's engine bay can accommodate. The outer diameter of the new generation filter is 210 mm (8.3") - tests using the carbon casing alone showed a flow of 396 l/m l/s at a pressure of 1.01 Psi. The filter insert is a dry type and is ISO certified, guaranteeing a filtration level consistent with the OEM standard. The design is based on a characteristic cone shape, supporting the Venturi effect generated by the casing.

Carbon intake duct

The intake duct directs air from the front fascia area to the filter housing. It fits the factory components and blends smoothly into the round shape of the carbon shell. To ensure tight insulation from the high temperature in the chamber, a flexible rubber rim is used around the opening, which presses against the filter housing, allowing it to move with the engine. Due to the fact that the Eventuri intake is intended for high-power vehicles, it was decided that the factory holes on the front of the vehicle might not be sufficient if there was a greater demand for cold air. Therefore, the top part of the Eventuri duct was raised, creating an additional opening above the front fascia, allowing additional air to be drawn in from under the hood closure. This additional gap has the same surface area as a 7" diameter pipe and completely unblocks the factory cold air system. The Eventuri Stage 3 intake duct is designed to obtain the maximum internal capacity allowed by the geometry of the engine bay. This allows the filter housing to draw air with minimal flow restrictions. Eventuri engineers also ensured the Stage 3 intake duct is compatible with the enlarged throttle bodies.

Carbon intake pipe

The intake pipe is made entirely of prepreg carbon, which makes its internal surface smooth and the fiber weave clearly visible. Stage 3 tubing, 103 mm (4") in diameter and with gentle bends to minimize pressure drop, directs airflow from the Venturi casing to the turbine inlet. Its geometry guarantees a laminar air system from the filter to the outlet.

Due to the high temperature generated by the turbine, Eventuri engineers designed a heat shield to protect the carbon intake pipe. The cover has a black powder coating and a gold layer at the base that reflects heat from the turbine and catalytic converter. The stainless steel handle ensures rigid mounting and fits the shape of the pipe to direct the heat in a different direction. NOTE - the cover may not fit some full turbo kits with a different exhaust manifold. OPF adapter (DWNA) Each Eventuri intake system includes an OPF DWNA adapter for engines with this element.