The CSF Race-Spec Dual-Pass Oil Cooler for the E46 M3 is a high-performance cooling component engineered to enhance engine temperature management during demanding driving conditions. Manufactured by CSF, a company with ISO certification and OE supplier status for multiple global automakers, this oil cooler is built to meet strict quality standards. It features a dual-pass design that improves heat dissipation efficiency, ensuring optimal oil temperature control for improved engine performance and longevity. Constructed with durable materials and subjected to rigorous testing such as hydrostatic testing, vacuum decay, and lifecycle assessments, this oil cooler guarantees reliability and consistent performance. Its drop-in fitment makes installation straightforward, providing a direct upgrade for enthusiasts seeking superior cooling capacity.

Designed specifically for the E46 M3, this oil cooler is suitable for models equipped with the S54 engine. It is intended for track use, high-performance street driving, or any application where enhanced oil cooling is critical. The kit is engineered to be a direct replacement for the stock unit, ensuring compatibility and ease of installation without modifications. No additional components are typically required, making it an ideal upgrade for those looking to improve engine cooling efficiency under strenuous conditions. This product is perfect for performance-oriented drivers aiming to maintain optimal oil temperatures during aggressive driving or extended track sessions.