CSF BMW M3/M4 (G8X) Transmission Oil Cooler w/ Rock Guard

The CSF ZF8 automatic transmission cooler is built with a dual-core design, featuring two 22mm stacked cores for a total thickness of 44mm, significantly more than the OEM's 28mm. This advanced cooling system uses CSF's AC condenser technology, incorporating a 1-row, 16mm, 9-channel microtube design that maximizes oil flow and surface area contact. This setup results in approximately a 30% increase in cooling efficiency, helping to prevent transmission damage from overheating during spirited driving on the street or track.

This cooler offers a substantial upgrade over the stock unit, boasting a 94% increase in fluid capacity, holding 1700ml compared to the OEM's 875ml. The rear cooler itself has 16 rows, taller than the OEM's 14 rows, and the overall core and tank volume sees a 194% increase. It's designed as a direct, drop-in fit for your BMW M3, M4, or M2 (G8X), utilizing OEM-style quick-connect fittings and rubber seals for a straightforward installation with no modifications required. It can be installed with CSF's high-performance heat exchanger or integrated into the existing OEM cooling system.

This cooler is an excellent choice for road racing, drag racing, or any vehicle with performance enhancements or transmission tuning that puts extra strain on the drivetrain. It comes with a rock guard for added protection and is backed by a 2-year limited warranty, giving you confidence in its performance and durability.