These high performance oil coolers from CSF Radiators are a direct fit for BMW E50 M5 and E6x M6 with the 5.0 V10 engine. The cooler is designed to benefit vehicles with tuned engines or those used on track where higher than normal oil temperatures are expected.15 row heavy duty bar/plate core for ultimate performance and reliabilitySpecial 'air-flow' bar design allows for maximum air flow through the core40% larger and 18mm thicker than the stock oil cooler for superior coolingCorrosion resistant satin black finishHeavy duty cast aluminium end tanks with 100% Tig welded constructionThe CSF Radiators race oil cooler is approximately 40% larger in size then the OEM cooler and are 63mm thick compared to the OEM 43mm. This allows them to far exceed the cooling capacity of the original unit making it ideal for the most demanding conditions.