Looking to knock some of the heat off that cooling system of your X3? This Brushless fan upgrade from RPM does just that by drastically increasing motor efficiency by over 20%. This means more air across the radiator and straining the charging system LESS while doing so. The RPM Brushless Motor utilizes a heat sink style casing to dissipate heat faster and more evenly giving you the reliability you demand from your machine. Sand, mud, water, & dust stand no chance at hindering performance against this sealed unit. Each motor comes as OEM replacement that utilizes the factory fan blade. Stainless, billet hardware is all included to make the swap from your standard motor to the RPM Brushless motor a breeze.