Eventuri Carbon intake system for Mercedes W205 C63(S) AMG

35% more airflowUp to 30 hp increase in performance84% larger air intakeFull carbon lookHigh-flow panel filter

The Mercedes W205 C63S AMG intake system is the culmination of extensive development and testing. Our design consisted of 3 main objectives: 1) Increased flow. 2) Low inlet temperatures. 3) Smooth airflow. The first objective was achieved by utilizing all of the limited space in the C63S engine bay, resulting in a 35% increase in flow rate compared to the original system. The second objective was achieved by designing a completely enclosed system. The C63S engine bay reaches high temperatures with heat sources such as the turbos in close proximity to the intake system, so it is crucial that the intake system remains sealed.

The end goal was achieved by designing an organically shaped system with individual rounded panel filters to ensure the airflow path contained no sharp corners, thus keeping the flow laminar. By providing smooth transitions from the filters to the turbo inlets, our intake system minimizes the creation of turbulence, allowing the turbos to operate more efficiently.With all 3 goals achieved, our intake system for the W205 C63(S) delivers on all fronts, allowing the turbos to produce boost more efficiently. This results in improved throttle response and real performance gains that increase the more power the engine has.

Since there are various turbo upgrades available for the C63S, we have also developed a special solution for larger turbos. Our C63S intake is available in 2 configurations: 61mm ID outlets to match the standard turbos and 76.5mm ID outlets to match the larger turbos.

Performance increase: Stage 2 C63S: 22-30 HP, 20-24ft-lb Performance increase: Original C63S : 10-12HP, 12-15ft-lb

Dyno testing was done on both a full C63S and a Stage 2 C63S with downpipes and a software tweak. Below is the dyno chart for the Stage 2 car, which had the same tune on all runs and only the airbox was changed. Importantly, the hood was closed for all runs to simulate road conditions. Dyno testing with the hood open - especially with open tapered intakes - does not give a reliable indication of how the intake system affects performance.

On the road the hood is closed and so all the heat from the turbos is trapped in the engine bay. On the C63S this intense heat is a problem which is why a closed system is so important. Because the higher air temperature is less dense the turbos don't push as much resulting in less power.Here you can see with our fully sealed system that the power increases linearly after 4800 rpm where the airflow requirement increases and the stock airboxes become a restriction.

These power gains were measured after only swapping the stock airbox for the Eventuri intake system - all other changes were present for both the stock airbox and the Eventuri intake system.The gains measured on the dyno translate on the street into increased part-throttle and full-throttle response, with the car pulling to the redline much more eagerly. Testing was done back-to-back on the same day and temperatures were monitored to ensure consistency.

The car was first tested with the hood closed. We then left the car on the dyno and installed the Eventuri. The car was then driven again - hood closed. Several runs were made with both configurations to achieve a consistent result.