Intake system Carbon | fits Audi RS6/RS7 (C8/4A/4K) | Eventuri

Facts:
Performance increase - Stage 1 : 45-50hp, 49ft-lbs
Stage 1 Acceleration 100-200Km/h : Shortening by 0.6s
Performance increase - Stage 2 : 60-80hp, 60-70ft-lbs
Material: Carbon
Manufacturer: Eventuri
Expert opinion: without

The Audi C8 RS6 intake system is the result of extensive development, testing and prototyping.

Our goal was to fulfill 2 main criteria:
1) Increased flow rate.
2) Uniform airflow.
The first objective was achieved by utilizing the limited space in the engine bay of the RS6, which was severely restricted by the underside of the hood. Our solution was to completely redesign the entire airbox, maximizing the volume, increasing the airflow inlets and creating a more favorable filter angle to the turbos. We also dramatically enlarged the turbo inlets by up to 85% when measuring the cross-sectional area at the openings. The second objective was achieved by designing an organically shaped system with a specially rounded plate filter to ensure that the airflow path did not contain any sharp corners and therefore the flow remained laminar. With smooth transitions from the filter to the turbo inlets, our intake system minimizes the formation of turbulence, allowing the turbos to work more efficiently. Working with BMC, we have developed a bespoke filter element to ensure that the filter area is as large as possible while keeping the airflow clean.
When all targets are met, our C8 RS6 intake system delivers on all fronts and allows the turbos to generate boost pressure more efficiently. This results in improved throttle response and significant power gains, which have been independently tested and increase with higher tuning levels. The measured power gains are a result of the complete system we have developed from the airbox base to the cover to the inlets.

Dyno tests
Our intake system has been independently tested both on the dyno and on the road. At higher tuning levels, the turbos require more air and so the standard airbox becomes a greater restriction. Here are some results from renowned tuners who have tested the intake system.

STAGE 1 TESTS
Dyno tests were carried out by Awesome GTI in the UK on their own C8 RS6 fitted with an OPF exhaust and their own Stage 1 remap. The car was run 4 times in 4th gear with the stock airbox and then switched to the Eventuri whilst the car remained on the dyno. The car was then driven again 4 times in 4th gear. The tests were all carried out on the same day and no other changes were made. The graph below shows the highest power with the stock airbox compared to the highest power with the Eventuri intake. In both cases, these are the first dyno runs, with performance decreasing on subsequent dyno runs due to heat build-up. As can be seen below, the intake offers a significant increase in power across the entire rev range. The highlighted point shows the highest power increase in the 60 hp rpm range at the crankshaft. The resulting power increases are noticeable on the road, with better throttle response and improved acceleration times.

STAGE 2 TESTS
The dyno tests on a Stage 2 RS6 were conducted by Eurocharged Canada on a car with aftermarket downpipes, intercoolers and their own Stage 2 remap. The values shown here are measured at the steering wheel. The car was run several times with the stock airbox and the Eventuri. The resulting figures are shown below after comparing the best stock and best Eventuri results. Again, we see a dramatic increase in performance and as this is stage 2, the stock airbox is an even bigger restriction. The highlighted dot shows the highest gain in the rev range of 79hp at the wheels.

Compatible vehicles: