Since a legitimate Underground 3 download does not exist, here is how you can get your street-racing fix safely:
The games are available on digital storefronts, though availability can vary by region due to licensing issues (especially the soundtrack). Need For Speed Underground 3 Pc Game Download
EA’s Need for Speed (2015) was often described by fans as a spiritual Underground 3 due to its focus on night racing and deep car customization, but EA explicitly stated it was a series reboot, not a direct sequel. Since a legitimate Underground 3 download does not
: Downloading these files can lead to Trojan infections or stolen personal data. Safe Alternatives Need For Speed Underground 3 Pc Game Download
: The first game to focus on urban street racing and deep car customization. : The direct sequel featuring an open-world city. Need for Speed (2015)