MISHIMOTO BMW E46 M3 Oil Cooler Kit, 2001-2006, Silver

The S54 engine is a remarkable piece of engineering, delivering smooth power, individual throttle bodies, and an 8,000‑rpm redline that creates an unmistakable driving experience. As with any BMW performance platform, maintaining proper oil temperatures is essential for long‑term engine health and consistent performance, especially for vehicles that see regular track use. To meet these demands, the Mishimoto engineering team developed a performance oil cooler kit that enhances durability while delivering the efficiency required for high‑temperature, high‑load driving.

This kit features an exceptionally efficient core that provides a proven 30°F (16.7°C) reduction in oil temperatures. With a 110‑percent increase in core thickness, the system also boosts total oil capacity by 0.44 quarts. The one‑piece billet end tanks are designed for maximum strength and reliability, giving drivers the confidence to push their E46 M3 to its limits without compromising cooling performance.