The S58 engine, introduced with the G80/82 M3/M4 2021+, has proven to be a real gem of an engine, capable of high outputs with great character. However, there are a few week points that needs addressing, both for performance and reliability. The S58 comes equipped with a water-to-air charge cooler that is coupled a with front-positioned heat exchanger (water radiator). The heat exchanger serves to cool the water circulating through the charge air cooler, which in turn helps dissipate heat from the charge air before it enters the engine.

The charge air cooler is integrated into the intake manifold on the S58, making it an intricate and dense construction, demanding accuracy in the design and execution by us as an aftermarket producer. This design that merges the intercooler with the intake manifold is effective; however, its performance is compromised by the tube-and-fin core that is attached to the thermoplastic tanks through crimping. These crimped connections have emerged as a significant vulnerability, with numerous instances of failure occurring with boost just a bit beyond the factory level.


Owners of tuned S58 engines often confront the issue of rapid heat soak in the charge air cooling system, particularly when the vehicle is used for track days. Elevated intake air temperatures may prompt the ECU to decrease the power output, or even switch the car into limp-home mode.

Additionally, the factory installed direct injection system, with its obvious benefits, is not well suited for insane horsepower applications or ethanol flex fuel usage. To be able to inject more fuel, many turn to modifying the stock intake by drilling holes for port fuel injectors.

As is often the case, factory components can become limiting factors when you strive for high power levels, particularly in terms of airflow. The factory (OE) intake manifold is such a component, that not only restricts airflow but also poses a significant risk of cracking under high boost levels, due to its plastic construction.


FEATURES:

• Utilizes a high performance, motorsport grade, Bar&Plate, air-to-water intercooler core from Garrett, 127 mm (5”) thick.
• Lower inlet air temperature under identical conditions.
• More air to your engine, less backpressure and better airflow! Airflow at 0,1 bar / 1,45 psi pressure drop.
• Designed in SolidWorks using Computational Fluid Dynamics (CFD).
• Easy access to spin-off oil filter for quick oil changes – no need to remove the manifold every oil change.
• Integrated sensor pad with three 1/8″ NPT ports to measure additional parameters (sealing plugs are included).
• Fuel rail is included for auxiliary top feed port injection.
• Fuel injector plugs for each cylinder runner is included.
• Individual 1/8″ NPT ports on the top of each cylinder runner for nitrous or meth injection (sealing plugs are included).
• Plug-and-play design, see installation instruction.
• Included are all the essential brackets needed for various components, such as wire harnesses.
• Thermal barrier spacer included, engineered to insulate the aluminum intake manifold from conductive heat transfer from the cylinder head.
• Custom made high spec FKM-silicone O-rings included for both the thermal barrier spacer and intake manifold (12 pcs in total).