The Beloved S65 V8 from BMW is well known and claimed to be one of the best engines ever introduced from the brand, but just like any other powertrain, it comes with its own set of issues. One of these issues is cooling issues. The team at DO88 took this opportunity to create and engineer a newly upgraded oil cooler to eliminate all of the previous issues. Boasting a 65% increase in core volume, a 59% larger active cooling area, and a 13.9% higher oil volume, this cooler definitely outperforms its OE counterpart. Nonetheless this oil cooler is the perfect upgrade to your E9X M3!