Eventuri carbon intake system for Mercedes Benz A35 AMG | CLA35 AMG and A250

*Some photos show the optional carbon turbo pipe.


Fits: Mercedes A35 AMG, CLA35 AMG, A250, CLA250


Power increase: 15-20hp, 15-18ft-lb



The Mercedes A35 AMG Eventuri intake system was developed to give the turbo a less restrictive flow path while keeping intake temperatures low. Reducing heat suction and increasing internal volume are key considerations when designing an intake system for turbocharged engines. On the A35, the intake system is in close proximity to the exhaust manifold, which quickly heats up the engine compartment. High temperatures have a detrimental effect on engine performance because the turbo has to use heated, less dense air to build up boost pressure. Therefore, the only way to keep IAT to a minimum is with a fully sealed intake manifold. To reduce the restrictions of a closed intake, we increased the volume of the airbox by relocating the ECU and providing an opening in the airbox on the cold side, away from direct heat from the manifold. The carbon inlet pipe has an increased internal volume with an initial inner diameter of 111mm (4.4?) that gently tapers to match the turbo inlet pipe diameter. Finally, we use a custom-made high-flow dry filter that is ISO approved and has a larger filter area than the stock filter.




dyno tests



The dyno tests were carried out by MSL Performance, a Mercedes specialist based in the UK. A fully stock A35 AMG was tested with the stock airbox and then the Eventuri intake system, external conditions being the same. As can be seen below, the intake tract offers a power increase throughout the rev range. The highlighted dot shows a significant performance gain as the intake tract allows for a higher flow rate at higher rpm where the stock airbox becomes a limitation. The resulting performance gains are noticeable on the road, with better throttle response and improved acceleration times. With a tuned A35 we would expect even better gains as turbo demand increases.



The Eventuri A35 intake system is a series of components designed for a specific purpose and manufactured to the highest standards. We use 100% pre-impregnated carbon fiber with no glass fibre, which means we can achieve a smooth inner surface for smoother airflow. Here are the details for each component and the design ethos behind them:



Each intake system consists of:


carbon airbox

Custom made high flow dry cone filter

Carbon intake pipe

CNC-milled intake flange

Laser cut stainless steel brackets and ECU cover

Silicone clutch with OEM clamps