CSF Cooling 8221 High-Performance Trans Cooler for BMW G8X M3/M4 ZF8

BMW G8X M3/M4 ZF8 High-Performance Automatic Transmission Cooler The engineers at CSF know cooling. So when it comes to keeping your transmission temps down as you push your BMW G8X M3/M4/M2 hard on the street or track, the CSF ZF8 Trans Cooler is the obvious choice. With an increase in cooling efficiency of around 30%, you can drive with confidence knowing you won't be damaging your expensive transmission due to overheating. Dual-Core Design 194% Increase in Core & Tank Volume 94% Increase in Fluid Capacity Compared to OEM (CSF 1700ml vs. OEM 875ml) Two 22mm Stacked Cores = 44mm Core Thickness vs. OEM 28mm Core Thickness Rear Cooler: 16 Rows vs. OEM 14 Rows (191mm Overall Height vs. OEM 155mm)