BMW M4 Transmission Oil Cooler - Front + Rear - CSF - ZF8 Dual-Core w/ Rock Guard - '21-'27. A drop-in dual-core set designed to control ZF8 temps for consistent performance.

CSF's kit upgrades the factory front and rear units for higher capacity and efficiency while retaining OEM quick-connects and seals. A 1-row, 16mm, 9-channel microtube core improves flow and surface contact. The front adds rows with a rock guard; the rear uses twin 22mm stacked cores. About a 30% efficiency gain supports tuned street, road race, and drag use. Works with the OEM system or CSF #8215.

Features

• Direct drop-in; OEM quick-connects; rock guard
• 94% more fluid capacity (1700ml vs 875ml)
• Rear: 16 rows; twin 22mm cores (44mm); 191mm vs 155mm OEM
• Front: additional 16 rows
• 194% increase in core and tank volume; 1-row 16mm 9-channel microtube; 2-year limited warranty

Questions? Austin 512-982-9393 | Los Angeles area 562-981-6800. We offer installation and customization services at both locations.

If you're purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov