CSF Racing DSG Transmission Cooler (MK7 Golf R, S3 8V)MK7 GOLF R CSF Racing DSG Transmission Cooler Kit The engineers at CSF know cooling. So when it comes to keeping your transmission temps down as you push your Golf R hard on the street or track, the CSF DSG Trans Cooler is the obvious choice. You can drive with confidence knowing you won't be damaging your expensive transmission due to overheating. If you need two cores, select 2x quantity for check out. 2 row 42mm Core with CSF B Tube Technology