Mercedes AMG Intakes

Info

The Mercedes M139 intake for the A45 and CLA45 has been developed to allow the turbo a smoother route for airflow to be drawn from. By redesigning the system to allow for a much more direct path, the turbo is able to generate boost with less drag and therefore reach target boost pressure sooner in the RPM range. This intake system has been developed to offer the highest possible flow rate whilst maintaining the lowest intake temperatures possible to produce a net performance gain. The de-restricted flow path also allows for turbo spool to be heard more clearly adding to the dynamics of the overall driving experience

Product Details

The Eventuri A45/CLA45 intake system consists of a number of components engineered to perform a specific purpose and fabricated to the highest of standards. We use 100% pre-preg carbon fiber with no fiberglasswhich means we can achieve a smooth internal surface to maintain smoother airflow.

Each intake system consists of:

• Carbon Fiber Patented Venturi Filter Housing
• Bespoke High Flow Dry Cone Filter
• Carbon Fiber Inlet Duct
• Laser Cut Stainless Steel Brackets
• Laser Cut Stainless Steel ECU Relocation Mount

Patented Venturi Filter Housing Assembly

The M139 filter housing comprises of a bespoke high flow filter, aluminum cowl and the carbon pod itself. The carbon pod shrouds the reverse mounted filter and smoothly shape the airflow down to the intake tubes. This smooth reduction in cross sectional area invokes the Venturi effect where the airflow accelerates whilst maintaining laminar conditions. It can be thought of as a large velocity stack – below is a diagram to show the comparison between our patented design and a regular intake system. Further details can be read in the Technology page.

Carbon Fiber Intake Duct

The duct channels ambient air from the slam panel area to the filter housing. It fits inside the OEM ducting system and smoothly transitions to the circular filter housing shape. In order to ensure a good seal against engine bay heat – it also has a flexible rubber edging around the opening which presses against the filter housings creating the desired seal yet allowing the housing to move with the engine. The side of the duct has some cut outs which allow air movement around where the ECU is now relocated to aid with heat saturation. The duct was designed to have the maximum internal volume possible within the given geometry of the engine bay. This ensures that the filter housing is able to draw with minimum restriction.

Laser Cut ECU Relocation Bracket

In order to relocate the ECU we have designed a bracket which is laser cut from stainless steel for strength and rigidity. The ECU securely mounts into this bracket which is then secured to the chassis of the car using the stock locating threads used for the OEM airbox bracket. In addition, there is another bracket which supports the filter housing and finally a piece which covers the top of the ECU to protect the wiring harnesses.

Performance

Dyno Testing

Our M139 intake has been independently tested by a Mercedes specialist tuner in the UK – MSL Performance. Several runs were done with the OEM airbox to get a repeatable result and then again with the Eventuri intake. Tests were done on the same day back to back. Results show an increase in torque and power across the entire RPM range – not just at the peak RPM, which is why the car feels more responsive and is able to accelerate faster through the gears.

Fitment

Eventuri’s Warranty

For information on Eventuri’s warranty terms and conditions, please click here.

Purchase Disclaimer: You are hereby informed and warned to check your local, state, and federal laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts. Bolt Motorsports does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Bolt Motorsports will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls. In accordance with local laws and regulations, Bolt Motorsports will not ship parts to locations where usage or installation of said part would be in violation of the aforementioned acts.