BWM S55 F80 M3 F82 F83 M4 Metal Skid Plate Under Tray

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Cars equipped with the S55 engine are exceptionally well-engineered from a cooling perspective. The design of the ducts, core, sturdy fans, and various other elements all contribute to the effectiveness of the cooling system. However, there are two crucial factors that cannot be overlooked—sufficient heat exchanger surface area and an adequate number of heat exchangers. Even in extreme road course conditions with high ambient temperatures, the S55 engine performs flawlessly, maintaining stable oil and water temperatures.

However, these engineering constraints have led to a significant vulnerability: the engine’s oil cooler is dangerously exposed. A direct impact on the oil cooler can result in catastrophic damage, causing the engine to lose all of its oil in seconds—an unfortunate fate that several owners have experienced firsthand. In response, Norcal Dynamics has developed a robust oil cooler guard specifically designed to protect the S55's oil cooler from large road debris and prevent much more expensive damage.

For optimal real-world protection, the S55 oil cooler guard is made from a thick stainless steel plate and attaches directly to the existing frame members, distributing the impact load across solid structural components. In line with BMW M’s meticulous airflow engineering, great care was taken to ensure that the opening in the oil cooler guard aligns with the shape and size of the original BMW oil cooler air outlet.