Eventuri CSL Carbon Fibre Intake System for G8X M3/M4

Eventuri’s revised G8X M3/M4 intake for fitment with the CSL Strut brace. They have carried out intensive R&D to develop an intake which not only improves on the stock M3/M4 but also is future proof in its capacity to cater for high powered builds well in excess of 1000hp. This system is a complete redesign from the airboxes to the turbo inlets with the aim of reducing pressure loss while increasing the flow rate and keeping inlet temperatures low. Eventuri have maximised the usage of the available space to employ 2 custom made filters with a 40% larger filtration area than stock. These are used in their Patented Venturi housings to smoothly funnel the air to the turbo inlets. The inlets themselves are up to 160% larger in cross sectional area than stock and are designed with an advanced dimpled inner surface to reduce frictional losses between the flow and the wall boundary. By allowing a “cushion” of air at the wall surface, airflow is able to move through the inlets at higher flow rates with reduced pressure loss. This allows the turbos to draw air with less resistance and therefore reduce the wastegate duty cycle resulting in higher overall performance.

The Eventuri Difference

The G8X M3/M4 Eventuri system uses their Patented Carbon Fiber Housings with their Gen 2 bespoke filters, which provide an aerodynamically efficient airflow path from the filter to the turbos. Not just another cone filter with a heat shield but a unique design which invokes the Venturi effect and maintains laminar flow conditions to reduce the drag on the turbo.

The Eventuri G8X M3/M4 intake system consists of a number of components engineered to perform a specific purpose and fabricated to the highest of standards. Eventuri use 100% pre-preg carbon fiber with no fibreglass which means they can achieve a smooth internal surface to maintain smoother airflow. 

Each intake system consists of:

• 2 x Carbon Fiber Patented Venturi Filter Housings
• 2 x Bespoke High Flow Dry Cone Filters
• 2 x Carbon Fiber Inlet Ducts
• Carbon Fiber Intake Tube
• 2 Thermoplastic Turbo Inlets
• Laser Cut Stainless Steel Brackets
• Custom Flexible Hose
• CNC Machined Bracket Mounts and Reinforcement Rings

This intake has been independently dyno tested by BR Performance in Belgium. Tests were done back to back against the stock airbox and several runs were taken with each configuration. The car tested was without charcoal filters. The best results were taken from the stock airbox and the best from the Eventuri system. The dyno results show a consistent gain throughout the RPM range which can be attributed to the turbos reaching peak boost earlier and with a lower wastegate duty cycle due to the higher efficiency of the intake system. This gain is despite the dyno cell temperatures rising from 11.8 deg C for the stock system tests to almost 16 deg C for the Eventuri tests. The performance gain translates on the road to increased part throttle and full throttle response with the car pulling much more eagerly to the redline.