The CSF race-spec dual-pass DCT oil cooler is a direct-fit upgrade for 2015–2018 BMW M2 (F87) applications, offering a plug-and-play solution for the N55 DCT system. Its dual-pass core with multiple cooling tubes and high-density multi-louvered fins is lab-tested to be substantially more efficient than the OEM single-pass cooler, and it installs using existing oil-line connections, brackets and shroud/ducting with no modifications required.
CSF 15-18 BMW M2 (F87) Race-Spec Dual Pass DCT Oil Cooler