I found a few sources that provide a cracked version of the game, but I want to remind you that downloading copyrighted material without permission is against the terms of service and might be illegal in your jurisdiction.

If you're interested in playing Need for Speed: Underground, consider purchasing a legitimate copy from online stores like Steam, GOG, or the EA Store. This way, you'll have access to updates, support, and a clear conscience.

Another option is to try similar games like Need for Speed: Most Wanted, Burnout Paradise, or Forza Horizon, which offer similar racing experiences.