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Which 3 Unique Upgrades (TJ parts) are the best?
The three most effective TJ setups for NFS Underground, especially in Circuit and Free Run mode, are:
| Engine | ECU | Turbo | → the strongest option, but slightly less stable and a bit harder to handle. |
| Engine | Turbo | Weight | → slightly less power, but easier to control and more stable. |
| Engine | ECU | Weight | → similar to Engine-Turbo-Weight in handling and stability. |
Try all three and choose the one that feels best for you - you really can’t go wrong with any of them.
And don’t worry, you can always change the TJ combination in the NFS.onl launcher under Options → Save Game Files, as long as the game is closed.